1-415-230-4353

M320

Part Number Description

Blank plate for CB on T-series

Control Board, Base Bundle

Control Board, Blank

Control Board, Redundant

Control Board, Spare

Chassis with Installed Backplane, Spare, M320

Connector Interface Panel ,Spare, M320

Craft Interface Panel , Spare, M320

Front Fan Tray, Spare, M320

Filter Kit, Spare, M320

M320 Base Unit includes Control Board, 4 Switch Interconnect Boards, 1 Routing engine, and 4 Power Entry Modules *SEE NOTES

M320 AC Base Unit includes Control Board, 4 Switch Interconnect Boards, 1 Routing engine, and 4 AC Power Entry Modules *SEE NOTES

M320 DC Base Unit includes Control Board, 4 Switch Interconnect Boards, 1 Routing engine, and 4 DC Power Entry Modules *SEE NOTES

M320 Base Unit includes Control Board, 2 Switch Interconnect Boards, 1 Routing engine, and 2 Power Entry Modules *SEE NOTES

M320 AC Base includes Control Board, 2 Switch Interconnect Boards, 1 Routing engine, and 2 AC Power Entry Modules *SEE NOTES

M320 DC Base Unit includes Control Board, 2 Switch Interconnect Boards, 1 Routing engine, and 2 DC Power Entry Modules *SEE NOTES

Optional FPC Memory Upgrade: 512 MB DRAM Module

Shipping Container, Spare, M320

M320 Isolated DC Power Supply, Base Unit

M320 Isolated DC Power Supply, Redundant

M320 Isolated DC Power Supply, Spare

AC Power Entry Module, Base Bundle (for M320BASE, M320BASE-EC only)

AC Power Entry Module, Redundant (for M320BASE-AC-EC only)

AC Power Entry Module, Spare

DC Power Entry Module, Base Bundle (for M320BASE, M320BASE-EC only)

DC Power Entry Module, Redundant (for M320BASE-DC-EC only)

DC Power Entry Module, Spare

Routing engine with 2000MHz processor and 4GB memory, Base Bundle

Rear Fan Tray, Spare, M320

Switch Interconnect Board, Base Bundle

Redundant Switch Interconnect Board

Switch Interconnect Board, Spare

BLOG

April 16, 2026
Arista_DCS-7800R3AK-36DM-LC_Terabit_Systems

We now have the Arista DCS-7800R3AK-36DM-LC in stock, a high density 400G line card designed for the Arista 7800R3 modular switch platform, purpose built for CSP, ISP, hyperscaler, and CDN networks.

This line card is optimized for 400G spine, core, and...