Review on 📷 2021 Amplim Micro SD Card 1TB | MicroSD Memory Plus Adapter | Extreme High Speed 170MB/S A2 MicroSDXC U3 Class 10 V30 UHS-I | for Nintendo Switch, GoPro Hero, Surface, Phone, Camera Cam, Tablet by Michael Hawkins

Amplim 256GB microSD card looks almost like any other generic microSD card, except it costs a little more than generic competitors AND branded products. Writing a slightly negative review due to the cost, but did some research (since there was no point in costing more): The research revealed that the write speed is well above average, which is great (and totally worth getting one pay a little more for). Tested both inside and outside the SD adapter. There is a slight performance hit in the adapter, but very little; You might lose 1 or 2 MB/s reading and writing. Compared to the Samsung SD card adapter, the drop was the same, which tells me that the Amplim adapter works well. Read performance is pretty close to the 100MB/s advertised on the box, hitting around 92-93MB/s. Write performance, as in most cases, isn't openly advertised, but I consistently get around 86 MB/s. Which is very nice. Other 256GB MicroSD cards from Lexar, Pioneer, SanDisk, etc. claim write speeds of up to 60MB/s (some only up to 30MB/s). This map. My only complaint is the purple text on the black plastic, which makes it pretty hard to read (if you have several and are trying to check capacity). Overall it deserves 5 stars and I hope the price doesn't put people off buying it as it offers more performance than other microSD cards.