USB-IP-4LC - Low-Cost 4 x USB 2.0 IP Extender via CATx, up to 330 ft.
USB 2.0 Over Gigabit IP Extender Device Server 480 Mbps 4-Port Hub
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USB over IP
SEDNA - 10/100/1000 Mbps Gigabit 4 Port USB Over IP Device Server for sale online | eBay
USB Over IP
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USB Device Servers
USB device server - 53642 - Wiesemann & Theis - Ethernet / industrial / DIN rail