Hard drive enclosure has smart sleep function, which has low power consumption for power saving. Hard drive enclosure uses high-performance main control chip, which supports larger capacity hard disk. It is constructed of ABS material. The length of this product is 12cm, the width is 7.5cm and the height is 1.2cm. The product supports notebook hard drives and SSDs with 6TB and SATA interface. Item Name: Hard Drive Enclosure Material: ABS Supported Capacity: Laptop Hard Drive and SSD That Support 6TB SATA Interface External Interface: USB3.0, Backward Compatible with USB2.0/2.1 Transmission Speed: 5Gbps Power Supply: USB Cable Directly Takes Power, No External Power Supply is Required Measured Speed: 450MBS (Actually Related to Hardware) Operating Humidity: 10%RH~80%RH Storage Temperature: -20 Degrees Celsius ~70 Degrees Celsius Storage Humidity: 5%RH~90%RH System Support: for Windows 98/Se/Me/2000/XD/for Win7/for Win8/for Win10....for Mac OS8.6 and Higher Features: High Speed, High-performance Chip, Smart Sleep Size Details: 12cm x 7.5cm x 1.2cm/4.72" x 2.95" x 0.47"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Note that this product is a hard drive enclosure and does not contain a hard drive. Package Includes: 1 x Hard Disk Enclosure (Hard Drive Not Included)