Arista 7050X3 — Used & Refurbished (Arista)

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How Much Does Arista 7050X3 Cost in 2026?

Used Arista 7050X3 switches in 2026 range from $800–$25,000, depending on condition and configuration. Used units with original power supplies and fan trays typically start at $800–$1,500, while vendor-certified refurbished models (with warranty) cost $4,000–$7,000. High-end variants with 64x 100GbE ports and QSFP28 modules can exceed $25,000 if sourced from decommissioned cloud provider stock. Compared to the OEM’s 2026 list price (~$50,000–$65,000), buyers save 50–85%. Caveat: Units with non-OEM power supplies may void compliance for financial institutions (e.g., SEC Rule 17a-4 logging requirements).

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Arista 7050X3 Specifications and Compatible Systems

The 7050X3 delivers 3.2 Tbps throughput with 48x 100GbE or 64x 40GbE ports (QSFP28). It supports 4x 100GbE uplinks via QSFP28 breakout cables and operates in temperatures up to 55°C. Compatible systems include Cisco Nexus 9300 (2018–2022) for stacking and Juniper QFX10000 (2020–2023) for EVPN-VXLAN. Warning: Non-Arista 100GbE transceivers (e.g., FS.com QSFP28) may trigger error rates above 0.001% under 40Gbps loads. Requires Arista EOS 4.25.2F or later for 100GbE link stability.

Block 3:

What to Check Before Buying a Used Arista 7050X3 in 2026

1. Port functionality: Use a Fluke Networks DTX-1800 to test all 48x 100GbE ports. Reject units with >2% frame loss at 100Gbps.
2. Fan tray health: Measure RPMs under load; replace if <12,000 RPM at 45°C (check with Arista’s show environment CLI command).
3. Power supply voltage: Use a Keysight 34972A multimeter to verify 12V rails stay