Best Memory Cards for Sony a9 III

In the fast-paced realm of professional photography, the Sony a9 III stands out as a true powerhouse, boasting groundbreaking features that redefine the possibilities of full-frame imaging. As the world’s first global shutter mirrorless camera, this cutting-edge device is designed to cater to the needs of sports photographers, wildlife enthusiasts, and photojournalists alike. With its 24.6MP sensor, the a9 III delivers unparalleled performance, allowing users to capture raw images continuously at an astonishing 120 frames per second and achieve flash sync at an impressive maximum shutter speed of 1/80,000 second.

To harness the full potential of this remarkable camera, selecting the right memory cards is crucial. The Sony a9 III, equipped with dual memory card slots that support both CFexpress Type A cards and UHS-II SD cards, provides users with the flexibility to choose between existing media and the faster CFexpress options. This dual-slot feature ensures optimal performance, enhancing the camera’s speed and efficiency.

In this guide, we explore the top recommended and fastest CFexpress Type A cards and SD cards for the Sony a9 III. Whether you’re seeking ultra-high read speeds or swift buffer clearing times, our carefully curated list takes into account both speed and price, empowering you to make an informed decision that aligns with your photography needs.

Sony a9 III Store links at B&HAdorama.

And if you’re interested in other accessories for your Sony a9 III, be sure to check out our Sony a9 III Lens Guide and Sony a9 III Gimbal Guide for even more helpful recommendations.

Best Memory Cards for Sony a9 III

Below are quick comparison tables featuring our top recommended CFexpress Type A cards and SD cards for the Sony a9 III mirrorless camera. Any of these cards would be a suitable choice. For more detailed recommendations or information on other brands and models, you can find them in the sections below.

CFexpress Type A Cards:

CFexpress Type A CardsMax. Read SpeedMax. Write Speed
Lexar Gold Series Professional CFexpress Type A Card900 MB/s800 MB/s
Delkin Devices BLACK CFexpress Type A Card880 MB/s790 MB/s
Delkin Devices POWER CFexpress Type A Card880 MB/s790 MB/s
Sony TOUGH CFexpress Type A Card800 MB/s700 MB/s
ProGrade Digital Cobalt CFexpress Type A Card800 MB/s700 MB/s
Exascend Essential CFexpress Type A Card800 MB/s700 MB/s

SD Cards:

UHS-II SD CardsMax. Read SpeedMax. Write Speed
Kingston Canvas React Plus UHS-II SD Card (V90)300 MB/s260 MB/s
PNY X-PRO 90 UHS-II SD Card (V90)300 MB/s280 MB/s
Sony SF-G Tough UHS-II SD Card (V90)300 MB/s299 MB/s
SanDisk Extreme PRO UHS-II SD Card (V90)300 MB/s260 MB/s
Wise Advanced SD-N UHS-II SDXC Card (V90)290 MB/s260 MB/s
ProGrade Digital UHS-II SDXC Card (V90)300 MB/s250 MB/s
Delkin Devices Power UHS-II SDXC Card (V90)300 MB/s250 MB/s
Delkin Devices BLACK UHS-II SDXC Card (V90)300 MB/s250 MB/s
Lexar Professional 2000x UHS-II SD Card (V90)300 MB/s260 MB/s
Hoodman Steel 2000x SDXC UHS-II Card300 MB/s260 MB/s
Angelbird AV Pro Mk 2 UHS-II SDXC Card (V90)280 MB/s260 MB/s
Transcend 700S UHS-II SD Card (V90)285 MB/s180 MB/s
Lexar Professional 1800x UHS-II SDXC Card (V60)270 MB/s180 MB/s
Sony SF-M Tough UHS-II SDXC Card (V60)277 MB/s150 MB/s
Sony SF-M UHS-II SDXC Card (V60)277 MB/s150 MB/s
Angelbird AV Pro MK2 UHS-II SDXC Card (V60)260 MB/s140 MB/s
ProGrade Digital UHS-II SDXC Card (V60)250 MB/s130 MB/s
Sony SF-E Series UHS-II SDXC Card (V60)270 MB/s120 MB/s
Lexar Professional 1667x UHS-II SD Card (V60)250 MB/s120 MB/s

Best CFexpress Type A Cards for Sony a9 III

1. Lexar Gold Series CFexpress Type A Card

  • Max Read Speed: 900 MB/s
  • Max Write Speed: 800 MB/s
  • Min Write Speed: 700 MB/s
  • VPG-400 Compliant at 400 MB/s
  • Capacities: 80GB, 160GB, 320GB
  • Limited Lifetime Warranty

The Lexar Gold Series Professional CFexpress Type A Card stands out as a top-tier choice for professional creators seeking unrivaled performance. With blazing read speeds of up to 900 MB/s and impressive write speeds reaching 800 MB/s, this card ensures seamless capture of ultra-high-quality images and cinematic 8K videos. Boasting a minimum sustained write speed of 700 MB/s, it excels in handling demanding tasks like raw photos and image bursts, while its compliance with the VGP-400 video class standard guarantees professional-level video performance. Offered in 80GB, 160GB and 320GB capacities, this card is a robust companion, resistant to extreme conditions, including temperature fluctuations, shock, vibration, X-rays, electrostatic interference, and UV lighting. Backed by a limited lifetime warranty, the Lexar Gold Series embodies reliability and quality for discerning creators.

Buy Lexar Gold Series CFexpress Type A Card at B&HAdorama.

2. Delkin Devices BLACK CFexpress Type A Card

  • Max Read Speed: 880 MB/s
  • Max Write Speed: 790 MB/s
  • Min Write Speed: 400 MB/s
  • 48-Hour Replacement Guarantee
  • Capacities: 80GB, 160GB
  • Limited Lifetime Warranty

The Delkin Devices BLACK CFexpress Type A Card is a stellar choice for discerning photographers and videographers seeking superior performance without breaking the bank. With a robust 160GB storage capacity, this card is tailor-made for professionals engaging in raw photography and high-bitrate video capture, including 8K, 6K, and 4K content. Sporting a PCIe 3.0 interface, it achieves impressive read speeds of up to 880 MB/s and write speeds of up to 790 MB/s, with a minimum write speed that reliably stays above 400 MB/s. The card’s durability is unmatched, being waterproof, shockproof, and resistant to extreme temperatures. Delkin stands by its product with a lifetime warranty and a 48-hour replacement guarantee upon registration, making the BLACK CFexpress Type A Card an unbeatable combination of value and performance.

Buy Delkin Devices BLACK CFexpress Type A Card at B&H.

3. Delkin Devices POWER CFexpress Type A Card

  • Max Read Speed: 880 MB/s
  • Max Write Speed: 790 MB/s
  • Min Write Speed: 400 MB/s
  • Capacities: 80GB, 160GB
  • Limited Lifetime Warranty

The Delkin Devices POWER CFexpress Type A Card offers an affordable alternative to its BLACK counterpart, delivering comparable performance without the 48 Hour Replacement Guarantee. Available in 80GB and 160GB capacities, both feature impressive read speeds, while the larger variant excels in faster write speeds. Catering to the needs of professional photographers and videographers, this card is ideal for raw photography, continuous-burst shooting, and high-resolution video recording up to 8K. The PCIe 3.0 interface ensures maximum read speeds of 880 MB/s and write speeds up to 790 MB/s, with a minimum write speed of 400 MB/s. Designed for durability, it is waterproof, shockproof, X-ray proof, and resistant to extreme temperatures, offering reliability in any environment. Backed by a limited lifetime warranty, the Delkin Devices POWER CFexpress Type A Card is a robust choice for content creators.

Buy Delkin Devices POWER CFexpress Type A Card at B&H.

4. Sony TOUGH CFexpress Type A Memory Card

  • Max Read Speed: 800 MB/s
  • Max Write Speed: 700 MB/s
  • Capacities: 80GB, 160GB, 320GB, 640GB
  • Limited 5-Year Warranty

The Sony TOUGH CFexpress Type A card stands out as the largest and most robust option on the market, available in 80GB, 160GB, 320GB, and 640GB capacities. Boasting impressive read speeds of up to 800 MB/s and write speeds of up to 700 MB/s, it excels in recording high-resolution videos and capturing continuous raw photos. Beyond speed, its durability is unmatched – surviving drops of up to 15 feet and rigidity tested to 70 N. The TOUGH design ensures over 10x greater bend resistance and 5x more impact resistance than the standard. It is also shockproof, temperature-resistant, X-ray-proof, electrostatic discharge-proof, and UV light-proof. Professionals seeking unparalleled speed, reliability, and durability will find the Sony TOUGH CFexpress Type A card indispensable for elevating their workflow and creative endeavors.

Buy Sony TOUGH CFexpress Type A Card at B&HAdorama.

Sony MRW-G2 CFexpress Type A/SD Card Reader at B&HAdorama.

5. ProGrade Digital Cobalt CFexpress Type A Card

  • Max Read Speed: 800 MB/s
  • Max Write Speed: 700 MB/s
  • Min Write Speed: 400 MB/s
  • 160GB Storage Capacity
  • Limited 3-Year Warranty

The ProGrade Digital Cobalt CFexpress Type A card stands out as a stellar choice for photographers and videographers seeking top-tier performance. Boasting impressive read speeds of up to 800 MB/s and write speeds of up to 700 MB/s, this card ensures seamless recording of raw 4K, 6K, 8K videos, and more. With a guaranteed minimum write speed of 400 MB/s, it promises uninterrupted capture even in demanding scenarios. Though not as rugged as Sony cards, its durable metal shell enhances thermal conductivity, safeguarding against high temperatures. The 160GB capacity provides ample storage for high-resolution content, backed by a reassuring 3-Year warranty. An affordable alternative with a sturdy metal case, it offers protection from extreme temperatures and efficient thermal management, ensuring reliability during intensive use. Tailored for emerging imaging applications, the ProGrade Digital Cobalt CFexpress Type A Card combines speed, durability, and value.

Buy ProGrade Digital Cobalt CFexpress Type A Card at B&HAdorama.

6. Exascend Essential CFexpress Type A Card

  • Max Read Speed: 800 MB/s
  • Max Write Speed: 700 MB/s
  • Shock, Vibration, and Magnet Proof
  • 2 Million Hour MTBF
  • Endurance (TBW): 150TB

The Exascend Essential Series CFexpress Type A Cards redefine reliability and performance for photographers and filmmakers. Available in 120GB, 180GB, 240GB, and a capacious 480GB, these cards are the epitome of seamless storage solutions. Boasting write speeds of up to 700MB/s and read speeds up to 800MB/s, they effortlessly handle 8K RAW capture, ensuring a worry-free experience for professionals on the move. The 360GB variant, optimized for 8K raw video, delivers exceptional stability with patented technologies and utilizes 3D TLC flash memory for blazing-fast sequential read speeds of up to 900 MB/s and write speeds of up to 800 MB/s. Resistant to shock, vibration, and magnets, the Exascend Essential Series CFexpress Type A Cards provide the space and reliability needed for capturing stunning moments without compromise.

Buy Exascend Essential CFexpress Type A Card at B&H.


Best SD Cards for Sony a9 III

1. Kingston Canvas React Plus UHS-II SDXC Card (V90)

Kingston Canvas React Plus UHS-II SD Card Key Specifications:

  • Bus Speed: UHS-II
  • Video Speed Class: V90
  • Max Read Speed: 300 MB/s
  • Max Write Speed: 260 MB/s
  • Min Write Speed: 90 MB/s
  • Capacities: 32GB (SDHC), 64GB, 128GB, 256GB (SDXC)
  • Limited Lifetime Warranty

For those seeking a rapid, dependable, and budget-friendly UHS-II SD card for their camera, the Kingston Canvas React Plus UHS-II SD Card is the optimal choice. In our rigorous speed and buffer tests, this card equaled the Sony SF-G Tough UHS-II card in top-tier performance, all while being nearly 40% more economical. The available capacities range from a substantial 32GB (SDHC) to 256GB (SDXC), providing ample storage for photographers and videographers alike.

The Kingston Canvas React Plus UHS-II SD Card excels in speed, boasting UHS-II, V90, U3, and Class 10 ratings for superior performance during demanding tasks. With an impressive maximum read speed of 300 MB/s and a maximum write speed of 260 MB/s, it facilitates swift and efficient data transfers, essential for high-resolution photo and video capture. The minimum write speed of 90 MB/s ensures consistent performance, particularly during burst shooting or video recording.

What sets this card apart is its durability and adaptability to various environmental conditions. It operates reliably in extreme temperatures, from -13 to 185°F (-25 to 85°C), making it suitable for diverse shooting environments. Additionally, the Kingston Canvas React Plus UHS-II SD Card comes with a limited lifetime warranty, showcasing Kingston’s dedication to delivering a reliable and robust storage solution.

Buy Kingston Canvas React Plus UHS-II SDXC Card at B&HAdorama.

2. PNY X-PRO 90 UHS-II SD Card (V90)

PNY X-PRO 90 UHS-II SD Card (V90) Key Specifications:

  • Bus Speed: UHS-II
  • Video Speed Class: V90
  • Max Read Speed: 300 MB/s
  • Max Write Speed: 280 MB/s
  • Min Write Speed: 90 MB/s
  • Capture 8K and 4K Video
  • Capacities: 64GB, 128GB, 256GB (SDXC)
  • Limited Lifetime Warranty

The PNY X-PRO 90 UHS-II SD Card (V90) stands out as a stellar choice for videographers and photographers requiring top-tier performance without breaking the bank. Boasting impressive read rates of up to 300 MB/s and write speeds reaching 280 MB/s, this SD card ensures seamless handling of 8K and 4K video, raw images, and sequential burst shots. Its V90 speed class designation guarantees a minimum speed of 90 MB/s for both reading and writing, making it an optimal solution for demanding tasks.

In comparison to the Kingston Canvas React Plus UHS-II SDXC card, the PNY X-PRO 90 offers similar performance at a competitive price point. If you’re seeking a reliable alternative or facing availability issues with the Kingston model, the PNY X-PRO 90 UHS-II SD Card (V90) emerges as a compelling and cost-effective choice. Whether used in DSLRs, mirrorless cameras, or advanced video equipment, its 256GB storage capacity and UHS-II bus compatibility make it an excellent investment for content creators seeking ultra-high-speed SD card solutions.

Buy PNY X-PRO 90 UHS-II SD Card (V90) at B&HAdorama.

3. Sony SF-G Tough UHS-II SD Card (V90)

Sony SF-G Tough UHS-II SD Card Key Specifications:

  • Bus Speed: UHS-II
  • Video Speed Class: V90
  • Max Read Speed: 300 MB/s
  • Max Write Speed: 299 MB/s
  • Min Write Speed: 90 MB/s
  • Capacities: 32GB, 64GB, 128GB

The Sony SF-G Tough UHS-II SD Card sets the gold standard as the fastest and most premium UHS-II SD card available. With an impressive read speed of up to 300 MB/s and a write speed of up to 299 MB/s, it excels in facilitating continuous shutter bursts, rapid shooting, and flawless 8K, 6K, and 4K video recording. This card’s exceptional speed, combined with its rugged design, makes it an unparalleled choice for photographers and videographers who demand top-notch performance.

The durability of the Sony SF-G Tough card is unmatched. Built to withstand the harshest conditions, it can endure drops from heights of up to 16.4′ / 5m, 72 hours of water immersion, and exposure to X-rays, magnets, dust, and static. Additionally, its resistance to UV light and extreme temperatures from -13 to 185°F ensures the safety of your data in any environment.

While the Sony SF-G Tough UHS-II SD Card comes at a premium price, its exceptional performance and robust design make it a worthwhile investment for professionals who require the best in speed, reliability, and durability. Rest assured, this card will never let you down when it matters most.

Buy Sony SF-G Tough UHS-II SDXC Card at B&HAdorama.

Buy Sony UHS-II SD Memory Card Reader at B&HAdorama.

4. SanDisk Extreme PRO UHS-II SD Card (V90)

SanDisk Extreme PRO UHS-II SD Card Key Specifications:

  • Bus Speed: UHS-II
  • Video Speed Class: V90
  • Max Read Speed: 300 MB/s
  • Max Write Speed: 260 MB/s
  • Min Write Speed: 90 MB/s
  • Capacities: 32GB, 64GB, 128GB
  • Limited Lifetime Warranty

When it comes to top-notch performance and durability, the SanDisk Extreme Pro SDXC UHS-II card stands out as an exceptional choice for photographers and videographers. With impressive read speeds of up to 300 MB/s and write speeds of up to 260 MB/s, it ranks among the fastest UHS-II SD cards available in the market. Its UHS Speed Class 3 (U3) and Video Speed Class 90 (V90) ratings ensure that you can capture fast-moving action and high-quality videos with exceptional clarity and precision.

Furthermore, this card is designed to withstand the rigors of extreme environments, making it perfect for outdoor photography and videography. It can endure x-rays, shocks, and water, providing robust protection for your valuable data. Additionally, the SanDisk Extreme Pro SDXC UHS-II card comes with a lifetime limited warranty, offering you added peace of mind and safeguarding your investment. Overall, this memory card is an excellent choice for anyone in need of a reliable, high-speed, and durable solution for their storage needs.

Buy SanDisk Extreme PRO UHS-II SD Cards at B&HAdorama.

5. ProGrade Digital UHS-II SDXC Card (V90)

ProGrade Digital UHS-II SDXC Card Key Specifications:

  • Bus Speed: UHS-II
  • Video Speed Class: V90
  • Max Read Speed: 300 MB/s
  • Max Write Speed: 250 MB/s
  • Min Write Speed: 90 MB/s
  • Capacities: 64GB, 128GB, 256GB, 512GB

The ProGrade Digital UHS-II SDXC Card (V90) stands out as an exceptional choice for photographers and videographers seeking top-tier performance. Boasting unparalleled speed and efficiency, this card is designed for capturing breathtaking high-resolution content, ranging from 6K and 5K videos to UHD 4K and high bit rate MPEG-4 formats. Its ability to handle rapid-fire bursts and raw photos distinguishes it as a versatile and reliable tool for creative professionals.

Available in capacities from 64GB to an impressive 512GB, the ProGrade card caters to the diverse needs of shooters, ensuring ample storage space for extensive projects. The V90 rating guarantees a consistent minimum write speed of 90 MB/s, providing a seamless and reliable experience. Whether you’re a seasoned professional or an avid hobbyist, the ProGrade Digital UHS-II SDXC Card (V90) offers the perfect blend of capacity and speed, making it a highly recommended choice for those demanding superior performance from their memory cards.

Buy ProGrade Digital UHS-II SDXC Card (V90) at B&HAdorama.

6. Delkin Devices Power UHS-II SDXC Card (V90)

Delkin Devices Power UHS-II SDXC Card Key Specifications:

  • Bus Speed: UHS-II
  • Video Speed Class: V90
  • Max Read Speed: 300 MB/s
  • Max Write Speed: 250 MB/s
  • Min Write Speed: 90 MB/s
  • Capacities: 32GB, 64GB, 128GB, 256GB
  • Water / Shock / X-Ray Proof

The Delkin Devices Power UHS-II SDXC Card stands out as a top-tier choice for those seeking a high-performance and cost-effective storage solution. Boasting an impressive read speed of 300 MB/s and a write speed of 250 MB/s, this SD card excels in swiftly transferring substantial files, including raw photos, 4K, and 8K videos, as well as rapid-fire bursts. What sets it apart is its robust reliability, attributed to built-in error correction technology that safeguards data integrity, even in the face of power loss or unexpected interruptions.

Backed by a lifetime warranty from Delkin, coupled with a 48-hour replacement policy, this SD card offers not only speed and dependability but also peace of mind. The perfect synergy of speed, reliability, and value, the Delkin Devices UHS-II SD card ensures optimal performance for demanding tasks. A stellar choice for those who prioritize efficiency and trustworthiness in their storage solutions.

Buy Delkin Devices Power UHS-II SDXC Card at B&HAdorama.

Buy Delkin Devices BLACK UHS-II SDXC Card at B&H.

7. Sony SF-M Tough UHS-II SDXC Card (V60)

  • UHS-II / V60 / U3 / Class 10
  • Max Read Speed: 277 MB/s
  • Max Write Speed: 150 MB/s
  • Min Write Speed: 60 MB/s
  • Records 4K, Full HD, and 3D Video
  • Water / Dust / Drop / Bend Proof
  • 180N Strength Rating
  • No Built-In Write-Protect Switch

The Sony SF-M Tough UHS-II SD Card (V60) emerges as an excellent choice for those seeking ample storage without breaking the bank. Ideal for users capturing single shots or requiring cost-effective storage solutions, the V60 memory card delivers outstanding value for money. Boasting a robust design, this SD card ensures durability and reliability, making it a dependable companion for storing important files, high-resolution photos, and videos.

Its cost-effectiveness doesn’t compromise on performance; the Sony SF-M Tough UHS-II SDXC Card strikes a perfect balance between affordability and functionality. With impressive speed and reliability, users can confidently rely on this memory card for seamless data storage. Whether you’re a photographer, videographer, or simply in need of reliable storage for various applications, the Sony SF-M Tough UHS-II SD Card (V60) stands out as a practical and budget-friendly choice that doesn’t compromise on quality.

Buy Sony SF-M Tough UHS-II SDXC Card at B&HAdorama.

8. ProGrade Digital UHS-II SDXC Card (V60)

  • UHS-II / V60 / U3 / Class 10
  • Max Read Speed: 250 MB/s
  • Max Write Speed: 130 MB/s
  • Min Write Speed: 60 MB/s
  • Records 4K, UHD 4K, Full HD & 3D Video
  • Records High Bit Rate MPEG-4
  • Error Correction & Wear-Leveling
  • Temperature / Shock / X-Ray Proof
  • Built-In Write-Protect Switch

The ProGrade Digital UHS-II SDXC Card (V60) strikes an optimal balance between affordability and performance. Catering to budget-conscious consumers, it combines a wallet-friendly price with robust features. With a rugged design, this card withstands extreme temperatures from -13 to 185°F, making it versatile for various environments. It boasts X-ray resistance and shockproof durability, ensuring data integrity and longevity. The inclusion of a limited 3-year warranty underscores ProGrade’s commitment to reliability. For those seeking a cost-effective yet reliable storage solution, the ProGrade Digital UHS-II SDXC Card (V60) emerges as a prudent investment, delivering performance without compromising on essential features.

Buy ProGrade Digital UHS-II SDXC Card (V60) at B&HAdorama.


Sony a9 III Store links at B&HAdorama.

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