NEW Arista DCS-7120T-4S-R 20x 10GB RJ45 4x 10GB SFP+ Back-to-Front Air Switch

The 7120T-4S puts 20 1/10GBASE-T copper ports and four 1/10G SFP+ ports in a 1RU chassis, letting servers with onboard 10GBASE-T connect over standard copper cabling while the SFP+ ports carry fiber uplinks.

Arista rates it at 480 Gbps and 360 Mpps, with 2.5 microseconds of latency. Typical power draw is 288W. The control plane has 2 GB DRAM and 2 GB flash, and management runs through two 10/100/1000 ports, an RS-232 console and USB.

Two 760W AC power supplies (PWR-760AC) are installed in a 1+1 redundant pair. Five hot-swap FAN-7100-R fans in N+1 move air back-to-front (port-side exhaust). Arista also sells a front-to-back version, so confirm the direction your rack needs and keep every fan matched.

The chassis measures 17.4 x 20.25 x 1.74 in and weighs 26 lb, so check the rack depth before you mount it. Advanced Layer 3 features such as BGP and OSPF need an Arista Enhanced L3 license, which is not included and is available from Arista partners.

A seller refurbished DCS-7120T-4S-R is also available. Matching spares include the PWR-760AC power supply and the FAN-7100-R fan module.

This DCS-7120T-4S-R is new and covered by the NetworkTigers one-year warranty. The original packaging may have been opened to inspect the contents.