5GbE

I only upgraded my local network to 2.5 Gbps Ethernet last year, but 5 Gbps Ethernet is soon coming to the home as shown by Realtek at COMPUTEX 2023 with demonstrations of their RTL816, RTL8157, and RTL8251B 5GbE chips that were initially unveiled at CES 2022. The RTL8126-CG is a PCIe 3.0 x1 to 5GbE controller offered in a QFN56 8x8mm package that succeeds the RTL8125 chips, the RTL8157-CG is a USB 3.2 Gen2 to 5Gbps Ethernet controller in a 8x8mm QFN68 package providing an update the RTL8156(B)/(BG) 2.5GbE USB controllers, and the RTL8251B-CG is a single-port “PHYceiver” in a 8x8mm QFM56 package. All support 10/10/100/2500/5000 Mbps links and consumes under 1.5 watts, against 0.7W for 2.5 GbE networking. The same Cat5e cables can be used at the higher speed. The company did not just come with some slides to show and also showcased some test boards for each chip […]