This item is a 3Com Impact 3C862 ISDN ISA Adapter IDE Plus Controller Card for ISA with a Xilinx XC4013 chip. Specs: 128K U interface, 20MHz procesor speed, Maximum onboard memory 1MB DRAM, Data Bus 16 bit ISA, ISDN protocol V.120.PPP. Drivers and Manuals are not included. Please check with your ISP for compatability