HP J4906A ProCurve Switch 3400CL-48G 48 ports 10/100/1000 GIGABIT Switch
Dual-personality functionality: four 10/100/1000 ports or mini-GBIC slots for optional fiber connectivity such as Gigabit-SX, -LX, or -LH. - Auto-MDIX: automatically adjusts for straight-through or crossover cables on all 10/100/1000 ports.