ADATA Premier Extreme microSDXC SD7.1 Express - 800MB/s
ADATA
ADATA Premier Extreme microSDXC SD7.1 Express - 800MB/s
The ADATA Premier Extreme microSDXC SD7.1 Express is a next-generation memory card built for professional content creators who need fast file transfers and high capacity in a tiny form factor. It delivers read and write speeds up to 800/700 MB/s using PCIe Gen3 technology, making it ideal for 4K video, RAW photography, and other bandwidth-intensive workflows.
Why this product
SD7.1 Express with PCIe Gen3 speeds
This card uses the latest SD Express standard and PCIe interface to reach up to 800 MB/s read and 700 MB/s write—roughly 8 times faster than UHS-II cards.
V30 Video Speed Class certified
Sustained write performance is guaranteed for 4K and 8K video capture without frame drops or buffering.
Tiny, durable form factor
At just 15 × 11 × 1 mm and 0.25 g, this card fits in any modern device while surviving professional use.
Backward compatible with UHS-I
Older cameras and readers that lack SD Express support will still recognize it, though at reduced speeds of up to 104 MB/s.
Lifetime warranty
ADATA backs the card for the lifetime of the product.
- Capacity256GB
- Sequential readUp to 800 MB/s
- Sequential writeUp to 700 MB/s
- Speed classV30, U3, C10
- StandardSD7.1 Express
- Form factormicroSD
- WarrantyLifetime
- SKUADA-4065-256
- EAN4711085947369
- Capacity512GB
- Sequential readUp to 800 MB/s
- Sequential writeUp to 700 MB/s
- Speed classV30, U3, C10
- StandardSD7.1 Express
- Form factormicroSD
- WarrantyLifetime
- SKUADA-4066-512
- EAN4711085947376
- SD7.1 Express readers and devices: latest mirrorless cameras, cinema rigs, portable recorders, and computers with SD Express card slots
- UHS-I devices: cameras, phones, and card readers with older UHS-I slots will work but at maximum 104 MB/s, not the rated 800/700 MB/s
- SD UHS-II or older (UHS-I without Express support): will not recognize the SD7.1 Express format
Best for
- Professional photographers shooting RAW bursts
- 4K and 8K video production
- High-speed data offload to computer
- Users with cameras that support SD7.1 Express
Trade-offs
- Older cameras and phones: If your device only supports UHS-I or earlier standards, you will not benefit from the 800/700 MB/s speeds.
- Budget-conscious everyday users: Faster speeds and high capacity come at a premium compared to UHS-II cards.
- Compact storage without specific need for speed: If you need small capacity and read/write speed is not critical, a standard SDHC card is simpler and cheaper.
Card
| Brand | ADATA |
|---|---|
| Capacity | 256GB |
| Standard | SD7.1 Express |
| Dimensions | 15 × 11 × 1 mm |
| Weight | 0.25 g |
Performance
| Read speed | Up to 800 MB/s |
|---|---|
| Write speed | Up to 700 MB/s |
| Speed class | PCIe Gen3 x1, U3, C10, V30 |
| Backward compatibility | UHS-I at up to 104 MB/s |
Durability
| Warranty | Lifetime |
|---|
Card
| Brand | ADATA |
|---|---|
| Capacity | 512GB |
| Standard | SD7.1 Express |
| Dimensions | 15 × 11 × 1 mm |
| Weight | 0.25 g |
Performance
| Read speed | Up to 800 MB/s |
|---|---|
| Write speed | Up to 700 MB/s |
| Speed class | PCIe Gen3 x1, U3, C10, V30 |
| Backward compatibility | UHS-I at up to 104 MB/s |
Durability
| Warranty | Lifetime |
|---|
Every option side by side. Rows that differ between them are highlighted — those are the ones worth deciding on.
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.