Internal PC interface: PCI Express x4, v. 3. 0External outputs: DB9M RS-232 port (16C550 UART up to 8 Mbps) ; DB25F 1MBps Standard Parallel Port (SPP, supporting EPP and ECP modes, IEEE 1284) Chipset: WCH382Additional low-profile bracketDimensions: 120 x 78 x 18 mmNet weight: 40 g