You've got four machines and two monitors per machine, and switching between them means a tangle of cables and a desk that's become a cable management disaster. The CS1644A puts one keyboard, one mouse, and one audio set in front of you and handles all four.
It's a 4-port KVM with a built-in 2-port USB hub, so you're not hunting for an extra USB connection for a dongle or a scanner. Dual DVI output means each computer gets its own pair of screens at up to 2560 × 1600 at 60 Hz. If you drop to single-link DVI, you can push 1920 × 1200 at 120 Hz – that's nVidia 3D Vision territory, so if your workflow needs high-refresh 3D, it's covered.
Need more than four? Daisy-chain a second CS1644A and you've got quad-view: eight machines, all controlled from the same console. No extra keyboard, no extra mouse, no extra desk real estate.
Audio switches independently from video and USB, so your audio focus follows whichever machine you're actually working on. Works with Windows, Mac, Linux, Sun, and FreeBSD. No driver installs, no software to keep updated. Video DynaSync handles the EDID handshake so you don't get a blank screen when you hot-swap between ports.
If your desk's been a four-monitor circus and you're tired of re-plugging cables every time you switch tasks, this is the one box that sorts it
| 0 | PS/2 |
| 1 | USB |
| 0 | Windows |
| 1 | Mac |
| 2 | Linux |
| 3 | Sun |
| 4 | FreeBSD |
| brand | ATEN |
| model | CS1644A |
| category | KVM Switch & Video |
| subcategory | Desktop KVM |
| kvm_ports | 4 |
| usb_hub_ports | 2 |
| video_output | DVI Dual Link / DVI Single Link |
| max_resolution_dual_link | 2560 x 1600 @ 60 Hz |
| max_resolution_single_link_3d | 1920 x 1200 @ 120 Hz |
| quad_view_support | 1 |
| audio | Yes, independent switching |
| 3d_vision_ready | 1 |
| video_dynasync | 1 |