USB SD Card Reader for PC, 3 Packs Micro SD Card to USB Adapter, Card Reader for Camera Memory Card Reader, Card Reader for Laptop (3 Pack USB2.0)

For the price, five stars. It works, and it is cheap. What are you getting? A slow card reader. Plain and simple. Below are hdparm tests using the same microSD card for both runs. The only variable changed was the adapter. hdparm tests using the same micro sd card for both tests, only changing out the adapter: ``` user@dev:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0029 Intel Corp. AX200 Bluetooth Bus 001 Device 003: ID 062a:4101 MosArt Semiconductor Corp. Wireless Keyboard/Mouse Bus 001 Device 004: ID 258a:00a0 SINO WEALTH USB KEYBOARD Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 006: ID 067b:2731 Prolific Technology, Inc. USB SD Card Reader <-- other adapter Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub user@dev:~$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS sda 8:0 1 58.2G 0 disk └─sda1 8:1 1 58.2G 0 part /media/tbrinkhuis/76E8-CACF <-- test card (Kexin Micro XC U1 I) nvme0n1 259:0 0 465.8G 0 disk ├─nvme0n1p1 259:1 0 512M 0 part /boot/efi ├─nvme0n1p2 259:2 0 8G 0 part [SWAP] ├─nvme0n1p3 259:3 0 97.7G 0 part / └─nvme0n1p4 259:4 0 359.6G 0 part /home user@dev:~$ sudo hdparm -t --direct /dev/sda /dev/sda: Timing O_DIRECT disk reads: 264 MB in 3.02 seconds = 87.40 MB/sec ``` Same card, different adapter: ``` tbrinkhuis@mint-dev-2:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0029 Intel Corp. AX200 Bluetooth Bus 001 Device 003: ID 062a:4101 MosArt Semiconductor Corp. Wireless Keyboard/Mouse Bus 001 Device 004: ID 258a:00a0 SINO WEALTH USB KEYBOARD Bus 001 Device 011: ID 14cd:1212 Super Top microSD card reader (SY-T18) <-- This adapter Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub tbrinkhuis@mint-dev-2:~$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS sda 8:0 1 58.2G 0 disk └─sda1 8:1 1 58.2G 0 part /media/tbrinkhuis/76E8-CACF <-- same test card (Kexin Micro XC U1 I) nvme0n1 259:0 0 465.8G 0 disk ├─nvme0n1p1 259:1 0 512M 0 part /boot/efi ├─nvme0n1p2 259:2 0 8G 0 part [SWAP] ├─nvme0n1p3 259:3 0 97.7G 0 part / └─nvme0n1p4 259:4 0 359.6G 0 part /home user@dev:~$ sudo hdparm -t --direct /dev/sda /dev/sda: Timing O_DIRECT disk reads: 58 MB in 3.10 seconds = 18.74 MB/sec ```

These little guys replace all of those normal SD Card to Micro-USB adapter cards that you loose all the time. With it being a 3-pack I put one in every carrying device I have (bookbag, bathroom bag, another bookbag) so that I have this adapter with me all the time. They work great, are small enough but not too small. Super easy to use. Very versatile. Every card I've put in them works perfectly so connectivity is great.

Good fit works well does what an SD card reader should.

For the price this seems to work well. Three of them for $4.99 is really hard to beat. Transfer speeds seen equal to the anker I was using up until it broke. I am giving it four stars because one of the three adapters was Dead on arrival but this price point two of them for $5 is still pretty good.

Perfect for loading info from an as card onto your computer! Very simple and easy to use. They are also really affordable and you get 3 for about the cost of one from other sellers!