Single Card Reader,just one card reader slot can be identified as a time
Feature

USB 2.0 Card Reader Hub 3.5 Front Panel TF Flash MiniSD Micro SD Card Slot MMC MS CF XD CF SIM Hight Speed Card Reader Floppy Box

With this handy seventeen-in-one 3.5" Internal Memory Card Reader you can easily read and write to your digital memory cards!
Installation is easy; just use the provided screws to secure the unit in the 3.5" bay,connect the cable to the motherboard header and install driver. You'll be transferring data with your memory cards in no time!
Internal memory card reader for 3.5" bay,
All in one card reader with usb 2.0 port,transmission speeds is up to 480Mbps
Fast reading and wriging
Multifunction, good substitute of floppy drive
Be compatible with Windows 98/ME/2000/XP/Vista/Window 7/8,
Active LED indicators of power and busy (read/write) equipped,
Adds these ports to your PC: MS, CF/MD, SD/MMC, XD, T-F, and high speed USB 2.0,
Easy plug and play and hot swapping for dynamic insert in/remove from four memory card slots,
Compatible Supper SD, MMC, RS-MMC, MiniSD, T-Flash, MS/MS PRO, MS Duo/MS Pro Duo,SIM Memory Cards:
CF Slot----------CF I/CF II/Utra CF/MIcro Drive
SD/MMC Slot-----MMC I/MMC II/Utra MMC/RS-MMC/C4/0/plus/C mobile/C micro/dvrs MMC/SD/Mini SD/Utra SD/Kingmax SD/Extreme SD/SD Ultimate/SD Elite Pro
Memory Strick----MS/MS-Pro/MS-Duo/MS-Pro-DUO/MS-MG-PRO/MS-MG-DUO/MS-MG-PRO-DUO/Ultra MS/MS select function card/Extreme MS
XD Slot----------XD
T-Flash Slot------T-Flash/Micro SD (no adapter is needed)
SIM Slot---------SIM