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Aten 4-Port USB 2.0 HDMI KVMP Switch (CS1794)
ATEN US224 2-Port USB Peripheral Sharing Device - Newegg.com
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USB 2.0 4 Port Peripheral Sharing Switch US224 ATEN, USB 2.0 compliant, support Windows, Linux ,Mac and Sun, Overcurrent protection, Hot pluggable, UK #1 KVM Market Leader - PC Maestro