Arista DCS-7300X3-48YC4-LC 7300X3 48x 25GB SFP28 4x 100GB QSFP28 Line Card

The DCS-7300X3-48YC4-LC is a 7300X3 line card with 48 SFP25 ports at 10GbE or 25GbE and four QSFP100 ports at 40GbE or 100GbE. Breaking the QSFP100 ports out gives up to 64 10/25GbE interfaces on a single card.

It fits the 7304X3 and 7308X3 chassis and requires 7300X3 fabric modules (DCS-7304X3-FM or DCS-7308X3-FM) in fabric slots 1 to 4. The 7300X Fabric-X modules are a different part, so confirm the fabric generation in your chassis first.

Arista rates each line card slot at up to 6.4 Tbps, with 4 billion packets per second and cut-through system latency below 2.5 microseconds. The card has a 32 MB packet buffer.

Power is 192 W typical and 227 W maximum, under 1.7 W per 10Gb of capacity. The card weighs 9.6 lb and measures 11.83 x 17.11 x 1.73 inches (W x H x D). It suits 25G server access and leaf roles where a chassis is preferred over many fixed switches.

Line cards and fabric modules are hot-swappable in Arista modular chassis, so you can add or replace one without powering the chassis down.

Keep blank covers in any empty slots so the chassis airflow stays balanced.

The SFP28 ports take optics such as the SFP-25G-SR 25G multimode transceiver, and the QSFP28 uplinks accept the QSFP-100G-SR4 100G multimode transceiver.

This seller refurbished DCS-7300X3-48YC4-LC is tested, working, and covered by the NetworkTigers one-year warranty.