Arista C-400 Wi-Fi 7 Access Point

The Arista C-400 is a Wi-Fi 7 (802.11be) indoor access point designed for office and campus deployments where the primary requirement is 6GHz connectivity with a standard PoE+ power budget and a compact physical footprint. At 185×185mm it is the smallest AP in the Arista Wi-Fi 7 portfolio, and at 22W it draws less power than any 5GHz-only 802.11ac AP of comparable MIMO order, enabling Wi-Fi 7 deployment from existing 802.3at PoE+ infrastructure without a switch refresh. Three concurrent 2×2:2 access radios on 2.4GHz, 5GHz, and 6GHz deliver a combined peak physical rate of 5.76 Gbps, with 802.11be multi-link operation (MLO) enabling client devices to aggregate bandwidth across bands within a single session for reduced latency and improved throughput stability under load.

Memory is sized for the full CloudVision CV-CUE management stack: 2 GB LPDDR4 RAM, 16 MB NOR flash for boot, and 8 GB eMMC for operating system, configuration, logs, and diagnostic captures. The single 5 GbE uplink port accepts 802.3at PoE+ power and connects to the upstream campus switch at 5 Gbps, matching the AP's aggregate tri-band radio capacity at the wired interface without requiring a 10 GbE switch port. A 5 dBi integrated antenna gain provides a coverage radius appropriate for the C-400's intended per-room or per-workspace deployment pattern, where one AP serves a conference room, private office, or open-plan zone of 20–30 clients rather than a high-density venue covering hundreds of simultaneous users. The operating temperature range of 0°C to 45°C covers standard commercial indoor environments without requiring environmental conditioning beyond typical office HVAC.