SerDes · Serializer/Deserializer
The circuit converting parallel data to a high-speed serial stream and back; lane rate sets link bandwidth.
Current numbers
50G→400G/laneSerDes ladder: 800G = 8x100G or 4x200G; 1.6T = 8x200G; 3.2T = 448G signaling (OFC 2026)
102.4 TbpsBroadcom Tomahawk 6 switch ASIC on 200G SerDes (512×200G; 1,024×100G option); native co-packaged-optics option; targets 100k–1M-XPU Ethernet fabrics
224G/laneSerDes rate enabling 1.6T pluggables and 102.4 Tbps switching; 448G/lane samples ~2027, volume ~2028