Arista Networks DCS-7500R-8CFPX-LC DWDM Transceiver

Arista DCS-7500R-8CFPX-LC is an eight-port 200G tunable coherent DWDM line card for Arista's 7500R series, implementing MACsec encryption and using CFP2 optics with LC fiber interfaces (CFPX-LC). Each port provides 200G of coherent DWDM transmission, enabling high-density, encrypted long-haul links when installed in a 7500R chassis. This line card is designed for deployment in data center interconnects, metro and backbone networks requiring scalable, tunable DWDM capacity, and it is shipped as a chassis-based option rather than a standalone module. The DCS-7500R-8CFPX-LC is documented by Arista as part of the 7500R DWDM family and is listed in multiple catalogs and advisories with an end-of-sale date of June 30, 2026, indicating its EOSL status. Typical applications include encrypted, high-capacity interconnects between data centers or across long-haul spans where tunable DWDM channels are required.