Techniz.co.uk has posted a review of the Jaht JCS-102UBM KVM Switch.

This Jaht JCS-102UBM KVM switch is a very good KVM switch which can support up to 2 PCs with just one monitor, keyboard, mouse, speaker and also microphone. I have tested it personally with the switching of two PCs, it does not create any delay during the switching. Besides that, the display does not create any lagging. This KVM switch is very suitable for those users that have two PCs and only have one set of devices. If using two monitor for each PCs, it will be very messy and waste of space. Beside that, this 2 port KVM switch does not require additional power for it. It will be getting the power source from the USB port. This is one of the best KVM switch I ever use, simple, good features and save space for extra monitor and other devices.

Jaht JCS-102UBM KVM Switch