Features: Plug and for play, no slot is needed, as long as there is a fixed position Internal and external network switching, which can switch network and hard disk power supply at the same for time, or switch power supply separately Gigabit network, internal and external network transmission speed up to 1000m/s Strong compatibility, there is no compatibility problem, applicable to multiple systems It can switch network and hard disk supply at the same for time or switch power supply separately Specifications: Product Name: Network and Hard Disk Power Isolation Card Type: Internal Transmission Rate: 10/100 / 1000 Mbps LAN baud rate: 1000M Ethernet Application: Desktop computer Adapter Socket: RJ45 Interface Type: PCI for Express Network Type: Gigabit Ethernet Colour:Black Material:PCB+metal Size:12x70mm/4.72x2.95in Package Includes: 1 x Network & Hard Disk Power Isolation Card 1 x Connecting Line 1 x Switch Line note: Due to manual measurement, please allow an error of 1-2 for cm, thank you for your understanding. Depending on the monitor, the color of the item shown in the photo may be slightly different from the actual item, please refer to the actual item.