D-Link Systems, Inc. KVM-440 8-Port PS2/USB Combo KVM Switch On-screen Display (OSD) Supports daisy chaining with up to 3 cascade levels- control up to 512 PCs from a single console Features keyboard emulation to prevent boot errors Supports hot-plugging Computer selection via Front Panel Button, Hot-Keys via a PS/2 keyboard, and OSD Menu (On-screen Display Supports Auto-Scan function LED display for PC and/or server status indication Three level password access: Administrator, User and Viewer