RiaTech SATA 2nd 2.5-inch Hard Drive Caddy for 12.7mm Universal CD/DVD-ROM

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Compatible 4 Channels switch help to improve the compatibility.You can try to move ” A””B””C””D” if your Laptop can not read HDD.(but please do not move if its working.
For more detail check product 2nd number image. Or call on customer care 9429577309.
Fast and reliable connection in laptop, just as the primary hdd fully integrated into laptop, no cables/psu/software driver needed
Uses 2.5″ sata hard drives 12.7mm-high ,supports 99% laptops with 12.7mm size dvd writers. Please email us if you have query regarding to compatibility with your laptop
It enables you to add a second notebook hard disk drive to your modular/optical bay