SANDISK 512GB Extreme microSDXC UHS-I Memory Card with Adapter (SDSQXAV-512G-GN6MA)

SpecPicks Verdict

SpecPicks scored SANDISK 512GB Extreme microSDXC UHS-I Memory Card with Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the PC & gaming hardware category. Sandisk's PC & gaming hardware lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for PC & gaming hardware of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

• Compatible with Nintendo-Switch (NOT Nintendo-Switch 2)
• Save time with card offload speeds of up to 190MB/s powered by SanDisk QuickFlow Technology (Up to 190MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. Based on internal testing; performance may be lower depending upon host device interface, usage conditions and other factors. 1MB=1,000,000 bytes. SanDisk QuickFlow Technology is only available for 64GB, 128GB, 256GB, 400GB, 512GB, and 1TB capacities. 1GB=1,000,000,000 bytes and 1TB=1,000,000,000,000 bytes. Actual user storage less.)
• Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately)
• Up to 130MB/s write speeds for fast shooting (Based on internal testing; performance may be lower depending upon host device interface, usage conditions and other factors. 1MB=1,000,000 bytes.)
• 4K and 5K UHD-ready with UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) (Compatible device required. Full HD (1920x1080), 4K UHD (3840 x 2160), and 5K UHD (5120 X 2880) support may vary based upon host device, file attributes and other factors. See HD page on SanDisk site. UHS Speed Class 3 (U3) designates a performance option designed to support real-time video recording with UHS-enabled host devices. Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS-enabled host devices. See the SD Association’s official website.)
• Rated A2 for faster loading and in-app performance (A2 performance is 4000 read IOPS, 2000 write IOPS. Results may vary based on host device, app type and other factors)

Full Specifications

Ready to buy?

SANDISK 512GB Extreme microSDXC UHS-I Memory Card with Adapter - C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-512G-GN6MA is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $105.99

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.