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Please make sure that the keyboard is hooked up on the KB port of the KVM. check underneath the GCS632U for the correct console port. you will see a keyboard and mouse icon. Make sure that the keyboard is connected to the keyboard port. tap scroll lock key twice to switch between computers.
StarTech.com's SV431USB is the reliable solution for server room and industrial computer environments. The SV431USB is a reliable computer management tool that allows you to control multiple computers from one console; minimizing downtime by making connected computers and input devices available as soon as they are attached. An all-metal, chassis provides SV431USB with a rugged and durable body that adds to the unit's reliability and dependability. The SV431USB is a true cross platform USB KVM that ensures a smooth and reliable operating experience. This integrated KVM switch also functions as an USB hub allowing the selected computer to have access to up to 4 USB devices. The SV431USB works with any operating system that supports the USB human interface device specification.
Note: This product will function as a standard KVM switch, powered by USB only. If you wish to use the integrated USB hub with high powered devices such as scanners, USB mass storage devices, or Multimedia Keyboards, the optional power adapter may be required.
Service & Support
3 years warranty
Service & Support Details
Limited warranty - parts and labor - 3 years - carry-in
Expansion / Connectivity
4 x USB - 4 pin USB Type B male - 4 ¦ 4 x display / video - VGA - 15 pin HD D-Sub (HD-15) male - 4
1 x display / video - VGA - 15 pin HD D-Sub (HD-15) male - 1 ¦ 2 x USB - 4 pin USB Type A female - 2
Data Link Protocol
Port status, power
Rack Mounting Kit
External - 1U
Keyboard / Mouse Interface
KVM Local Users Qty
1 local user
1920 x 1440
Solution for the mouse. I have 8 KVM's. Most of my computers work with the KVMs. On 1 inland KVM the logitect and Microsoft optical mice do not work on one computer (but work with the other computers). They both are USB. I hook them up with a USB to PS2 adapter. If I use a ps2 ball mouse connected to the KVM the mouse works. All the Mice work if I directly connect them. Since I do not want a ball mouse I got a Frisby optical PS2 mouse. It works with all the computers on the KVM's.
I do not have a solution for the Keyboard yet. 1 computer (ASUS MB) on my trendnet or belkin 4 postion KVM does not recognize the keyboard.
Typically, the KVM indicator light will only light up on the connection that is currently active. The indicator light will switch to another connection when that connection becomes active.
First I would make sure that all the mouse and keyboard connections are secure. I have seen where these sometimes pop out, and thus some componenty will not work. I would then make sure that all the computers are fully powered on. The KVM will not allow you to switch to a device if it is not powered on. The KVM may indicate that a connection is down by a blinking light if you switch to a port and the connection is not up. It sounds that you have atleast one good set of cables. I would confirm that the other sets of cables are good as well. Do this by swapping the other cables with the one port that you know you have working. Finally, with a set of good working cables, swap them over to the other ports on the KVM switch. Although it may be improbable, you may have a bad KVM.
AS always, I would review the product manual here:
And, since this is a new product, you will also be entitled to free tech support from Belkin: