The Arista QSFP-100G-DR is a QSFP28 100GBASE-DR (single lambda) module from Arista Networks for 100 Gbps links. It plugs into a 100G QSFP port on an Arista switch and is used for 100G leaf-spine fabrics, DC interconnect, 4 × 25G breakout and service-provider aggregation.

Arista specifies the QSFP-100G-DR for 500 m on duplex single-mode fiber (interoperates with 400GBASE-DR4 / XDR4 / PLR4 breakout lanes up to 500 m).

Per Arista's published optics data sheet, the QSFP-100G-DR transmits −2.9 to +4.0 dBm and receives −5.9 to +4.0 dBm.

The QSFP-100G-DR uses a Duplex LC connector on duplex single-mode (G.652), at 1310 nm. Both ends of the link must use the same optical standard.

It works in Arista switches with 100G QSFP ports that support this optic. Send us your switch model and EOS version and we will check it against Arista's Transceiver and Cable Guide before dispatch, so you only receive a module that works in your port.

All are single-lambda 1310 nm optics on duplex LC. DR = 500 m, FR = 2 km, LR = 10 km. They are also the far-end partners for 400G DR4 / XDR4 / PLR4 in 4 × 100G breakout.

Yes. Next Gen Networks supplies original Arista Networks optics, not third-party lookalikes or grey-market stock. Every unit is checked before dispatch, and we share the serial numbers on request so you can verify them in EOS ('show inventory').

The Arista QSFP-100G-DR price in India depends on quantity, delivery city and current stock. Next Gen Networks supplies it with a GST invoice (input tax credit ready) and pan-India dispatch from New Delhi. Send the part number, quantity and delivery city on WhatsApp +91-7827955775 or email Sales@nextgennetworks.in and we reply with a GST quote.

Arista lists maximum power of 4.5 W for the QSFP-100G-DR. Check your switch's per-port power budget for dense deployments.