4 x 9-pin D-Sub COM ports 1 x 25-pin D-Sub LPT port 1 x 15-pin D-Sub VGA port 1 x KB/Mouse port 1 x RJ45 LAN Jack port 3 x bracket openings
3 x 9-pin D-Sub COM ports 1 x 25-pin D-Sub LPT port 1 x 15-pin D-Sub VGA port 1 x KB/Mouse port 1 x RJ45 LAN Jack port 3 x bracket openings