Aleratec 1:1 HDD Copy Dock USB 3.0 Hard Drive (350123) (Certified Refurbished) This Certified Refurbished product is tested & certified by Aleratec to look and work like-new. The product includes all original accessories, and is backed by a 90-day warranty Sector-by-sector standalone hard disk drive cloning Simple; one-button clone operation Progress bar for monitoring status Dual HDD access via USB 3.0 or USB 2.0 combination of SATA and IDE targets