Black Box ACR1002A-T ServSwitch Agility KVM-over-IP Transmitter - Dual-Head Dual-Link DVI-D, USB 2.0

The dual transmitter takes either two DVI-D heads or one dual-link display up to 2560 x 1600 and puts it on the network with no-loss compression, alongside USB HID, USB 2.0, audio and serial. Magic Eye deals with dithered graphics. A point-to-point pair on CAT6 covers 328 feet; another network switch every 328 feet extends that as far as you like.

The same unit is a KVM matrix component: when a receiver changes channel it switches DVI, audio and USB together, while the transmitters that are not selected keep emulating the devices that were attached, so nothing enumerates or drops. Add receivers to add users, mix channels to combine video, audio and USB from different sources, or run single-target sharing in view-only, share or exclusive mode.