USB 3.0 dual card reader 2 in 1 mobile phone OTG card reader

karve factory have 2 high quality usb3.0 card readers want to show you.
USB 3.0 + usb-c dual card dual reader dual head two in one mobile phone OTG card reader

GL3224_QFN 48Pin
This is a usb-c 3.0 to SD and TF two in one card reader, with two interface input functions, supporting type-C and
Type-A input function (it does not support the simultaneous use of two USB interfaces), supports the simultaneous reading and writing of dual cards, and supports the computer windows system
Android mobile phone OTG, tablet computer, Android smart TV and other devices

USB3.0 two in one dual card single reader computer pen reader high speed multi-function card reader

GL3224_QFN 32Pin
Support transmission rate: over speed (5g) / high speed (480mbps) / full speed (12mbps)  conform to universal serial bus specification 3.0 and revision 1.0
 conform to universal serial bus 2.0 revision
 support memory cards below 2TB
 double card single reading
 installation free drive, plug and play
 support multiple operating systems: support Windows 7 / Vista / XP / 2000 / me, Mac OS 9 / 10 and Linux
Operating System