简要说明：BLACK BOX牌的Black Box SW721A-R2产品：估价：1，规格：SW721A-R2，产品系列编号：齐全

　　Black Box SW721A-R2
型号：SW721A-R2
产品描述：2-port secure KVM switch that supports both PS/2 or USB-style keyboards and mice.    
详细描述: Keep your computers separate—but use just one keyboard, monitor, and mouse to access up to four PS/2? or USB-style computers.
Automatic keyboard and mouse booting for IBM PC compatibles.
Switch from your keyboard or the switch's front panel.