Eliminate the need for external supply bricks to power USB (Universal Serial Bus) peripherals in your retail locations. The HP 4-Port Powered USB (Universal Serial Bus) Cards unique cabling allows USB (Universal Serial Bus) devices to receive power from the HP rp 5700 Point of Sale System. Make your HP rp 5700 Point of Sale system peripherals more dependable & reliable with the HP 4-Port Powered USB (Universal Serial Bus) Card. Now you can connect self-powered USB (Universal Serial Bus) devices such as barcode scanners, receipt printers & signature capture devices to the HP rp 5700 Point of Sale system, without having to power these devices with cumbersome power supply bricks. The HP 4-Port Powered USB (Universal Serial Bus) Card is a PCI form factor card which features three 12V ports & one 24V port for devices such as receipt printers.