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Dual ETH Quad RS485 Base Board (B) For Raspberry Pi Compute Module 4, Gigabit Ethernet, 4CH Isolated RS485, USB2.0 | CM4-ETH-RS485-BASE-B
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Seeed Dual Gigabit Ethernet Carrier Board for Raspberry Pi Compute Module 4 Review: Serving Your Needs | Tom's Hardware
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Ethernet/USB HUB HAT Expansion Board for Raspberry Pi 4 B/3 B+/3 B/2 B/Zero/Zero W /2 W/Zero WH/2WH, with 1 RJ45 10/100M Ethernet Port, 3 USB Ports ...
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Mini Dual Gigabit Ethernet Base Board Compatible with Raspberry Pi Compute Module 4 CM4/4 Lite, Dual Gigabit Ethernet Ports,1xUSB 2.0 Port,1x40PIN GPIO Header,5V, Type-C Interface: Amazon.co.uk: Computers & Accessories
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UCTRONICS PoE HAT for Raspberry Pi 4, Mini Power Over Ethernet Expansion Board for Raspberry Pi 4 B 3 B+
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Compute Module 4 to Raspberry Pi 4 Adapter, Connect CM4 to Replace Raspberry Pi 4B, Alternative for Pi 4,Onboard 4-ch USB 3.0,RJ45 Gigabit Ethernet ...
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New Raspberry Pi 4's have dedicated gigabit ethernet, two USB 3 ports, and up to 4GB of RAM. Read/write SSD speeds benchmarked over 320MB/s respectively. Gigabit ethernet reached 943Mbps. Impressive for networking
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