Features: 1) Extend the hard drive life time for long 2) Enhance the hard disk in a cooling environment 3) Best performance Features: 1) With 4-port USB hub 2) USB 1.1 or 2.0 hub 3) 2 fans Specifications: 1) Material: PC 2) Rated voltage: 12V DC 3) Speed: 3,100 ± 10rpm 4)...