Arista unveils open Ethernet rack-scale AI portfolio with 144 accelerators per rack

Arista announced an open Ethernet rack-scale portfolio for scale-up and scale-out AI networks, with liquid-cooled racks that hold up to 144 accelerators each and up to 1,024 across racks. The designs are built with AMD, Arm, Broadcom, d-Matrix, Meta, Microsoft and Qualcomm and are pitched as an open alternative to proprietary compute islands. The release gave no ship dates, pricing or revenue expectations.

• Up to 144 accelerators per rack, up to 1,024 across racks through cross-rack topologies
• Liquid-cooled Orthogonal Chassis supports 100 to 400 kW of cooling
• Three scale-up designs: Orthogonal Chassis, Cabled Backplane and Cross-Rack System
• Partners: AMD, Arm, Broadcom, d-Matrix, Meta, Microsoft, Qualcomm
• No availability date or revenue impact disclosed