Rank #5 in Best 1TB microSD Card 2026: 10 Ranked, Read vs Write
BIWIN Amber ME300 MicroSD Express 1TB, 900MB/s
Price and rating as shown on Amazon when we collected them. Both change.
The BIWIN Amber ME300 is the fifth card in this guide: a 1TB microSD Express card at £244.99, listed at up to 900MB/s read and rated 4.4 out of 5 from 85 Amazon ratings. It is the second card here that names the 900 MB/s figure — the guide's most expensive card, at £270.99, is listed at the same 900 MB/s peak, which makes this one £26 less for the same claim on paper. The listing describes it as SD 7.1 with a PCIe Gen3x1 interface alongside UHS-I, and puts Switch 2 first in its compatible devices.
The number worth stopping on is inside the listing's own spec table. The title and bullets say 900MB/s read; the table lists a Media Speed of 800 megabytes_per_second. That is two figures for the same card, 100 MB/s apart, and neither of them is a write speed — no write figure appears anywhere in the details we have. The same 900 MB/s applies only in a microSD Express slot, because the card is sold as backward compatible with UHS-I devices, where UHS-I speeds are what you get. Everything on this page comes from the Amazon listing and its spec table; nothing here was measured by us.
How those 85 ratings break down
An average hides its own shape. This is the spread behind the 4.4 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £244.99 |
|---|---|
| Rating | 4.4 out of 5, from 85 ratings |
| Listed read speed | 900 MB/s |
| Media Speed (as listed) | 800 megabytes_per_second |
| Interface (as listed) | SD 7.1 specification, PCIe Gen3x1 plus UHS-I dual protocol |
| Speed class (as listed) | Class 10, V30 |
| Compatible devices (as listed) | Camera, Switch 2, UHS-I devices |
| Item weight (as listed) | 20 g |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Really needed, got it on sale too! Works perfectly with my switch 2, my other SD card was full.”
Verified purchase“Excellent value. Working reliably so far.”
What it is up against
The rivals it was ranked against in Best 1TB microSD Card 2026: 10 Ranked, Read vs Write.
Questions people ask
Does the BIWIN Amber ME300 run at 900MB/s in every device?
No. The listing's own spec table gives a Media Speed of 800 megabytes_per_second, and the 900 MB/s peak comes from the PCIe Gen3x1 microSD Express side; the listing also describes the card as backward compatible with UHS-I devices, where UHS-I speeds apply.
Is the BIWIN Amber ME300 compatible with the Switch 2?
The listing names Switch 2 under Compatible Devices and says the card is optimized for and fully compatible with next-generation handheld consoles.
What capacity is this BIWIN Amber ME300?
1TB. The listing says the ME300 line offers capacities up to 1TB, and this version is the 1TB card.
How does the BIWIN Amber ME300 compare with older card types?
The listing claims peak performance 9 times that of traditional UHS-I cards and 3 times that of UHS-II cards.
Is the BIWIN Amber ME300 protected against water and dust?
The listing says it has multiple layers of protection against water, dust, shocks and X-rays.
What warranty does the BIWIN Amber ME300 carry?
The listing states a Limited warranty type; it does not give a warranty length in years on the page.
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