"Expandable - Cascade a second level of KVM switches to control up to 128 servers from a single stationExtend distance: between computer and switch up to 30 meters/100 ft.Rack mountable: sleek, 1U space saving KVM switchesInnovative CAT5 technology: eliminate cable clutter at the rackMulti-layer security: protects your corporate dataEasy server management: choice of On Screen Display, Hot-key,or push button controlMulti-platform: PS/2 and USB supportTo convert DisplayPort or HDMI computers to VGA, use adapters P134-06N-VGA-V2 or P131-06N. Maximum video resolutions using adapters may vary.Add Model B021-000-17 for space saving, in-the-rack, LCD, Keyboard and MouseCompact Size: 17""W x 5""D x 1.75""HVideo Resolution: 1600x1200@75HzInternal Power SupplyCompatible with all major operating systemsConstructed of heavy-duty steel housingCompliant with the Federal Trade Agreements Act (TAA) for GSA Schedule purchasesNote: B051-000 remote access IP unit is not compatible with our B072-008-1or B072-016-1 1U Rack-Monunt NetCommander Cat5 KVM Switch Series."