This  Serial ATA Hard Drive Adapter lets you add a second hard drive to the laptop systems.
With a second hard drive, you can quickly store and back up critical data. Add this caddy to your laptop to give you another hard drive.
Simply remove your CD/DVD-ROM drive and put the Caddy (with the added hard drive) in it's place...
This is a good working adapter and is Guaranteed.

• Works in Ultrabay of your ThinkPad T420,W520,T520 (It doesn't fit T420s)
• Accepts 2.5" SATA hard drives
• Also compatible with 2.5" SSD

Key Features:
Plug & Play, Supports hot swapping
Fast & Reliable connection in ThinkPad, just as the primary HDD
Fully integrated into ThinkPad laptop, no cables/PSU/software driver needed
Dual boot, Support installation of 2nd operating system on the 2nd HDD and boot selection
Condition: NEW ,not original lenovo part,manufactured by a professional Chinese OEM factory

Payment must be made within one week of auctions end . We accept Paypal only. Lucky winner bidder must respond within 2 days and finish the payment within 5 days after the auction end.

SHIPPING METHOD:
US: USPS First-class Mail(no extra cost,usually it takes 6-12 days to arrive)
UK: Standard Int'l Shipping(10-20 days), Expedited Int'l Shipping(little extra cost,6-12 days)
Other countries: Registered mail(10-20 days)
We provide 100% satisfaction service, deliver shippment fastly and seldom lost parcel. International order will be processed in 1-2 business days .

If you have any questions or would like to see additional photos, please contact us before bidding. We are always happy to hear from the folks who visit eBay and answer all of our e-mail promptly. We will always do our best to accurately describe items we are selling, including any imperfections or defects. What you see is EXACTLY what you will get, GUARANTEED! Check out my other items, and Thanks for looking .

Check out other items: eSATA/USB combo port cable for 2.5'' laptop hard drive External USB case/enclosure for SATA DVD drive see here