{"product_id":"arista-dcs-ds-7720r4-128pe-f-7720r4-distributed-spine-switch-128x-800g-osfp-sup-el","title":"Arista DCS-DS-7720R4-128PE-F | 7720R4 Distributed Spine Switch, 128x 800G OSFP, Sup-EL","description":"The Arista 7720R4 Distributed Spine Switch delivers 128 x 800GbE OSFP fabric ports as the spine core of the 7700R4 Distributed Etherlink Switch (DES) system — an ultra-scalable AI\/ML leaf-spine architecture engineered for hyperscale accelerated computing. Operating as a single logical switch across distributed hardware, it supports over 4,600 x 800GbE hosts in a two-tier configuration and scales to tens of thousands of 400GbE\/800GbE ports with a super-spine layer, reaching petabits per second of aggregate capacity. This bundle includes the Sup-EL supervisor module, 4 x AC power supplies, and 4 x SAF-D power cords with front-to-rear airflow, ready for immediate deployment.\u003cbr\u003e\u003cbr\u003eBuilt on advanced 5nm silicon, the 7720R4 delivers 100% internally lossless forwarding through cell-based traffic spraying that eliminates elephant and mice flow collisions, with deterministic, fair performance at every scale. Fully integrated with Arista EOS and CloudVision, it provides automated fabric configuration, real-time telemetry, RDMA-optimised load balancing, DCQCN\/PFC\/ECN support, and Ultra Ethernet forward compatibility — making it the definitive spine fabric for next-generation GPU cluster and AI\/ML infrastructure. Need it fast? iptrading.com.au delivers across Australia — shop now.","brand":"Arista","offers":[{"title":"Default Title","offer_id":63479112925553,"sku":"DCS-DS-7720R4-128PE-F","price":0.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/3665\/1889\/files\/Screenshot_2026-04-21_121110_a461dc68-9ddd-4956-9e4c-565456fa0f14.png?v=1776739720","url":"https:\/\/www.iptrading.com.au\/products\/arista-dcs-ds-7720r4-128pe-f-7720r4-distributed-spine-switch-128x-800g-osfp-sup-el","provider":"IP Trading Pty Ltd","version":"1.0","type":"link"}