Is the Samsung P9 Express microSD Express card worth it?
Worth it, but only if your device speaks the same language
Why picking a memory card suddenly got confusing
You slide a memory card into a new console and wait for the loading screen to do something, anything, faster than the console you just replaced. That wait is the whole reason the Samsung P9 Express microSD Express card exists, and it's also the reason half the people buying one are about to overpay for speed their device can't use.
How microSD Express actually gets its speed
Here's where your money actually goes. A regular microSD card, no matter how fast the sticker claims, talks to your device over the old SD bus, a data path designed back when a fast transfer meant 100 megabytes a second. microSD Express changes the wiring, not just the label: it keeps the same physical pins for backward compatibility, but adds the lanes to run the PCIe and NVMe protocol underneath, the same protocol your laptop's internal SSD uses. That's the whole trick behind the 800 megabytes per second read number, it isn't a faster SD card, it's a tiny SSD wearing an SD card's shape. The catch, and the marketing skips this part, is that both ends of the connection have to agree to speak the new language. Slot the P9 Express into a Nintendo Switch 2, a Steam Deck, or a PC with an Express capable reader, and you get the real number: big game installs finish while you're still on the loading screen, and dumping a camera's worth of photos stops being a coffee break job. Slot it into an original Switch, an older camera, or any laptop's built in reader, and the card quietly falls back to the old UHS-I bus, Class 10 speeds, somewhere around 100 megabytes per second, because that's all the host knows how to ask for. The drop proof, waterproof, temperature proof shell is nice and probably true, but it's not why this card costs what it does. The interface is.
So the real question was never speed, it was compatibility. You're not buying a faster memory card, you're buying a matched pair, a card and a slot that speak the same protocol, and one without the other is just an expensive UHS-I card. Match it right and the spec sheet is honest; mismatch it and you paid Express money for ordinary storage.
Who the Samsung P9 Express is for, and who should skip it
Worth it if
- you own a Nintendo Switch 2 or another device with a microSD Express slot
- you want a single card that also survives drops, water, and temperature swings
- you're buying storage for a device you've confirmed supports the standard
Skip it if
- you're using the original Nintendo Switch or any older UHS-I only device
- your card reader or laptop doesn't support microSD Express
- you just want cheap bulk storage and don't care about transfer speed
Not for anyone plugging into an older Switch, camera, or laptop slot that's never heard of microSD Express.
The Samsung P9 Express review, is it worth it
If you own a Switch 2, a Steam Deck, or a computer with an Express reader, this is a quiet yes, the speed is real and you'll feel it on day one. If you're buying it for an older Switch, an aging camera, or any laptop's built in slot, the honest trade is a cheaper UHS-I card that will perform identically in that hardware.
The wait you felt standing in that aisle is exactly what this removes, but only for the right slot. Drop it into a Switch 2 or an Express ready reader and day one looks like this: a big game finishes installing while you're still finding a comfortable seat, and clearing a camera's memory card full of photos stops being a coffee break task. That's the payoff, quiet and repeatable, every time you use it afterward.
Amazon shoppers rate it 4.7 out of 5 across 2,009 ratings. That is their number, not ours.
Before you go
Does the Samsung P9 Express work on the original Nintendo Switch?
Yes physically, because microSD Express cards keep the older legacy pins, but the original Switch has no Express reader, so the card just runs at standard UHS-I speed, none of the extra bandwidth you paid for.
Do I need microSD Express, or will a cheaper UHS-I card work for Switch 2?
A standard UHS-I card will work in a Switch 2, but the console's Express slot is what unlocks the faster load and transfer times, so a cheaper card gets you storage without the speed benefit.
By the numbers
camera & photo products reviewedThis one is a yes with a condition attached.
Verdict datasetQuestion indexCC BY 4.0
Full spec sheet
| Flash Memory Type | Micro SDXC |
|---|---|
| Memory Storage Capacity | 256 GB |
| Compatible Devices | Camera, Gaming Console, Nintendo Switch 2, Personal Computer, Steam Deck |
| Additional Features | Drop Proof, Magnetic Proof, Temperature Proof, Water Proof, X Ray Proof, microSD Expres… |
| Read Speed | 800 megabytes_per_second |
| Media Speed | 100-200 MB/s |
| Hardware Connectivity | microSDXC |
| Secure Digital Association Speed Class | Class 10 |
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