Capacity: hard drives and SSD with SATA interface up to 3000G External interface: USB3.0 can be used for USB2.0 Applicable hard disk: 2.5-inch SATA interface hard disk or SSD, Overall length: 40cm + -5% Weight: 0.07kg Measured speed: 500MB / S (actually related to hardware) Working environment: Operating humidity: 10% RH-80% RH; Storage temperature: -20 ° C-70 ° C; Storage humidity: 5% RH-90% RH