We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small black microSDXC card with red label and full-size SD adapter

SanDisk

SanDisk Extreme Pro microSDXC 512GB UHS-I U3 V30 A2 with Adapter

SKU CH-PBT4-AMTDH

512 GB microSDXC card with 170 MB/s read and 90 MB/s write speeds, U3, V30 and A2 ratings, plus SD adapter

  • Total capacity512 GB
  • Memory card formatMicroSD
  • Speed classUHS-I/U3/V30
  • Max read speed170 MB/s
  • Write throughput90 MB/s
  • VariantWith Adapter

Capacity 512GB

  • 512 GB capacity stores extensive 4K footage and high-resolution photos
  • Read speeds up to 170 MB/s transfer 1000 photos plus 30 minutes of 4K video in under 3 minutes
  • Write speeds up to 90 MB/s capture fast-action shots and smooth 4K UHD recording
  • U3 and V30 ratings guarantee sustained performance for uninterrupted 4K video
  • A2 rating delivers faster app loading and responsiveness on Android devices

512 GB microSDXC UHS-I U3 V30 A2 Card

This SanDisk Extreme Pro microSDXC card provides 512 GB of storage with UHS-I interface speeds. It carries U3 and V30 ratings for sustained video capture and an A2 rating for application performance. The bundled SD adapter allows use in full-size slots.

Built for 4K capture on phones.

The card suits creators who record 4K UHD video or shoot bursts of high-resolution photos on compatible mobile devices. It is not for hardware that requires UHS-II or UHS-III bus speeds. It is not for workflows that need sustained write performance beyond the stated 90 MB/s.

170 MB/s read and 90 MB/s write speeds

Sequential read reaches 170 MB/s and sequential write reaches 90 MB/s, enabling transfer of 1000 photos and 24 GB of 4K footage in roughly 3 minutes. These figures determine whether the card matches your device's required throughput.

How it compares

Measured against everything we stock in SD & MicroSD Memory Cards, at today’s prices. Recalculated every night.

Price $125.99
Pricier than about 77% of the 1,947 comparable items (median $46.99).
Total capacity 512 GB
Higher than about 90% of the 1,132 comparable items (median 64 GB).
Price per TB $246.07 per TB
Cheaper than about 71% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineExtreme Pro
Model nameSDSQXCZ-512G-GN6MA
Total capacity512 GB
Product typeMicroSDXC
Performance
Speed classUHS-I/U3/V30
Max read speed170 MB/s
Write throughput90 MB/s
Storage
Memory card formatMicroSD
More details
VariantWith Adapter

Other versions of this model

5 more in the same range

Questions about this item

Does the 90 MB/s write speed generate noticeable heat during long 4K recording sessions?

The card is rated for sustained 90 MB/s writes and carries the V30 video speed class, which is designed for continuous 4K UHD capture without thermal throttling under normal use.

My device only has a full-size SD slot — will the bundled adapter let me use this microSDXC card directly?

Yes, the package includes a microSD-to-SD adapter so the 512 GB card works in any standard SDXC slot that supports UHS-I speeds.

Will the A2 rating actually speed up apps on a phone that is three years old?

A2 performance requires host support for command queuing and caching; older phones without that support will still run apps, but they will not see the full A2 benefit.

More in SD & MicroSD Memory Cards

Similar items