Features: brand new and high quality Connect with Raspberry Pi series motherboards and use for Ros robot ,computer and industrial computer for Jetson for Nano 2.5inch HDD/SSD Shield. Supports up to 4TB 2.5-inch hard disk drives (HDD) / solid-state drive (SSD). USB 3.0 connectivity offers plug-and-play functionality on your for Jetson for Nano. Quick file transfer with high-speed USB3.0 from a PC or Pad. On-board for DC power jack allows to provide enough power to HDD/SSD.No additional cables needed. USB bus-powered or powered by external power adapter. Package Includes: 1 x USB 3.0 HUB Expansion Board Specifications: Chip: VL817 Transmission speed: 5Gbps Input interface: USB-A Data cable length: approx 30cm/11.8in Output interface: 4xUSB3.0 Compatible system: Win7/8/10 Linux MacOS Ubuntu Working Voltage: 5V Working current: 90mA Output current: 4USB for 5A; single USB for 1.5A External power supply interface: MicroUSB 5V DC5.5x2.5 (9-24v); XH2.54 interface (9-24v) Size: approx 68x60x18.5mm/2.68xx2.36x0.73in note: Only the above package content, other products are not included. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 0-2cm.