Arista DCS-7050QX-32 — 32x QSFP+ 40GbE 1U Data Center Switch
Technical Identity
The Arista DCS-7050QX-32 (7050QX-32) is a 1U data-center Ethernet switch from the Arista 7050X series with 32x QSFP+ 40GbE ports, 2.56 Tbps of switching capacity and cut-through latency of approximately 550 ns per the Arista 7050QX datasheet. Stock labels for this listing include "7050QX-32", "DCS7050QX-32" and "DCS-7050QX-32" — all refer to the same Arista model. Condition: Refurbished.
Specifications
Brand: Arista Networks
Model / MPN: DCS-7050QX-32
Product type: Data-center Ethernet switch (fixed configuration)
Product family: Arista 7050X Series
Ports: 32x QSFP+ 40GbE
Breakout: 24 QSFP+ ports support 4x10GbE, up to 96x 10GbE + 8x 40GbE
Switching capacity: 2.56 Tbps
Latency: ~550 ns cut-through (datasheet range 550-650 ns)
Packet buffer: 12 MB shared, Dynamic Buffer Allocation (up to 6.7 MB to a single port)
Form factor: 1U rack-mount
Power: typically under 5 W per 40GbE port (datasheet)
Airflow / PSU: -F (front-to-rear) or -R (rear-to-front) variant per unit label — verify before order
Operating system: Arista EOS (EOS-2GB image; last supported train EOS 4.24)
Condition: Refurbished
Engineering Context
The 7050QX-32 was one of the most widely deployed 40GbE leaf/spine switches of its generation. Its single-chip design delivers wire-speed L2/L3 forwarding across all 32 QSFP+ ports, while Dynamic Buffer Allocation lets congested ports draw from the 12 MB shared packet memory for lossless bursts. Arista EOS provides the standard operational toolset of the platform, including Zero Touch Provisioning and Linux-based tooling, as documented in the 7050QX datasheet.
Use Cases
40GbE leaf/spine and top-of-rack aggregation in data centers
High-density 10GbE server access via 4x10GbE breakout (up to 96 ports)
Lab, staging and test fabrics where current-EOS support is not required
Cost-effective spare or expansion unit for existing 7050QX estates
What This Is NOT
NOT the DCS-7050QX-32S. This model has no SFP+ ports; the -32S adds 4x SFP+ and has a later software support timeline.
NOT a 100GbE switch. Ports are QSFP+ 40GbE; QSFP28 100GbE operation is not supported.
NOT an InfiniBand switch. Ethernet only.
NOT supported by current EOS trains. EOS 4.25 and later do not support this platform (last supported train: EOS 4.24, EOS-2GB image).
NOT supplied with transceivers, cables, rail kits or other accessories unless explicitly stated.
NOT sold with any EOS software license or support entitlement. Software and support arrangements are between the buyer and Arista.
Compatibility & Hard Constraints
Optics/cabling: QSFP+ 40GbE transceivers, DAC and AOC; 4x10GbE breakout on the 24 breakout-capable ports.
Typical peer platforms: 10/40GbE leaf-spine fabrics and 10GbE server NICs via breakout.
Airflow: the -F / -R airflow variant must match your hot-aisle/cold-aisle design — confirm the variant on the unit label before ordering.
Software: platform requires the EOS-2GB image, supported up to EOS 4.24; EOS image access requires an Arista account/entitlement.
Pre-deployment verification: confirm airflow direction, PSU type and EOS image availability against the unit label and Arista documentation.
Frequently Asked Questions (FAQ)
Q. What is the Arista DCS-7050QX-32?
The DCS-7050QX-32 is a 1U Arista 7050X-series data-center Ethernet switch with 32x QSFP+ 40GbE ports, 2.56 Tbps of switching capacity, approximately 550 ns cut-through latency and a 12 MB dynamically shared packet buffer, running Arista EOS.
Q. Are 7050QX-32, DCS7050QX-32 and DCS-7050QX-32 the same model?
Yes. They are label spellings of the same Arista model; the canonical Arista part number is DCS-7050QX-32. Units in this listing may carry any of these label spellings.
Q. Can the QSFP+ ports of the DCS-7050QX-32 break out to 10GbE?
Yes. Per the Arista 7050QX datasheet, 24 of the 32 QSFP+ ports can operate as 4x10GbE, allowing configurations up to 96x 10GbE plus 8x 40GbE.
Q. Does the DCS-7050QX-32 support 100GbE or include SFP+ ports?
No. All 32 ports are QSFP+ 40GbE; QSFP28 100GbE operation is not supported. Dedicated SFP+ ports are found on the DCS-7050QX-32S, which is a different model.
Q. Which Arista EOS versions support the DCS-7050QX-32?
Per Arista's end-of-support notice, the 7050QX-32 requires the EOS-2GB image and is supported up to and including the EOS 4.24 release train; EOS 4.25 and later do not support this platform. EOS software access requires an arrangement with Arista - no software entitlement is included with this hardware.
Q. What condition is the DCS-7050QX-32 supplied in by T.E.S IT-SOLUTIONS?
Refurbished. Each unit is tested, inspected and professionally packed, shipping from EU stock with global B2B delivery. Airflow variant (-F front-to-rear or -R rear-to-front) and PSU configuration are per unit label - confirm before order.
Why T.E.S IT-SOLUTIONS
Every DCS-7050QX-32 unit ships with: (1) power-on and functional testing, (2) configuration reset and inspection, (3) full cosmetic inspection, (4) professional packaging for freight, (5) global B2B shipping from EU stock, (6) technical consultation for data-center network design at no extra cost.
Condition: Refurbished. Tested working. Airflow/PSU variant per unit label. EU stock, global B2B shipping.