Small enough to tie onto your mobile handset or carry on your key-chain. Can be used as a USB Flash Drive if you keep your microSD/microSDHC card installed in the device.
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USB 2.0 Keychain Micro SD Card Reader
Card Reader Comparison: USB 2.0 vs USB 3.0
Hannord Micro SD Card Reader, 3-in-1 USB 2.0 Memory Card Reader OTG Adapter with
High-quality mini size usb 2.0 card reader for Micro SD TF card
USB 2.0 MS SD Mini Micro Memory Stick Reader Writer Card
USB 2.0 Keychain Micro SD Card Reader
Insten Sdhc / Sd / Mmc Memory Card Reader To Usb 2.0 Adapter, Smoke : Target
USB 2.0 Micro SD Card Reader for Micro SD Card TF Card Adapter Plug and Play for Laptop Desktop pc - Price history & Review, AliExpress Seller - Rdxone Official Store
If I used this microSD card with this USB 2.0 card reader ($1.98), and used a USB 3.0 port on my laptop, would the speed of the microSD get bottlenecked while backing