Arista DCS-7050QX-32S — 32x QSFP+ 40GbE + 4x SFP+ 1U Data Center Switch
Technical Identity
The Arista DCS-7050QX-32S (7050QX-32S) is a 1U data-center Ethernet switch from the Arista 7050X series with 32x QSFP+ 40GbE ports plus 4x SFP+ 10GbE ports, 2.56 Tbps of switching capacity and cut-through latency of approximately 550 ns per the Arista 7050QX datasheet. Condition: Refurbished.
Specifications
Brand: Arista Networks
Model / MPN: DCS-7050QX-32S
Product type: Data-center Ethernet switch (fixed configuration)
Product family: Arista 7050X Series
Ports: 32x QSFP+ 40GbE + 4x SFP+ 10GbE
Breakout: 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 (supported through the EOS 4.28 release train)
Condition: Refurbished
Engineering Context
The 7050QX-32S extends the widely deployed 7050QX-32 design with four native SFP+ 10GbE ports, useful for uplinks, management-adjacent services or low-count 10GbE devices without consuming a QSFP+ breakout. It delivers wire-speed L2/L3 forwarding across all ports, with Dynamic Buffer Allocation drawing on the 12 MB shared packet memory during congestion. Arista EOS provides 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 plus 4 native SFP+ ports
Lab, staging and test fabrics on the EOS 4.28-and-earlier trains
Spare or expansion unit for existing 7050QX estates
What This Is NOT
NOT the DCS-7050QX-32. The plain -32 has no SFP+ ports and an earlier software support cutoff.
NOT the DCS-7050QX2-32S. The QX2 is a different, later platform.
NOT a 100GbE switch. QSFP+ 40GbE only; QSFP28 100GbE operation is not supported.
NOT an InfiniBand switch. Ethernet only.
NOT supported by current EOS trains. EOS 4.29 and later do not support this platform (last supported train: EOS 4.28).
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; SFP+ 10GbE optics/DAC in the 4 SFP+ ports; 4x10GbE breakout on QSFP+ ports.
Typical peer platforms: 10/40GbE leaf-spine fabrics and 10GbE server NICs via breakout or SFP+.
Airflow: the -F / -R airflow variant must match your hot-aisle/cold-aisle design — confirm the variant on the unit label before ordering.
Software: supported up to the EOS 4.28 train; 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-32S?
The DCS-7050QX-32S is a 1U Arista 7050X-series data-center Ethernet switch with 32x QSFP+ 40GbE ports plus 4x SFP+ 10GbE 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. How does the DCS-7050QX-32S differ from the DCS-7050QX-32?
The -32S adds 4 dedicated SFP+ 10GbE ports alongside the 32 QSFP+ ports and has a later software support timeline (supported through the EOS 4.28 train, versus EOS 4.24 for the plain 7050QX-32).
Q. Can the QSFP+ ports of the DCS-7050QX-32S break out to 10GbE?
Yes. Per the Arista 7050QX datasheet, QSFP+ ports can operate as 4x10GbE, allowing configurations up to 96x 10GbE plus 8x 40GbE in addition to the 4 native SFP+ ports.
Q. Does the DCS-7050QX-32S support 100GbE?
No. The QSFP+ ports are 40GbE; QSFP28 100GbE operation is not supported. For 100GbE, a 7060X-class platform such as the DCS-7060CX-32S is required.
Q. Which Arista EOS versions support the DCS-7050QX-32S?
Per Arista's end-of-support notice for the 7050X/X2 series, EOS releases up to and including the 4.28 train support this platform; EOS 4.29 and later do not. Arista's extended bug-fix window for the 4.28 train ended March 20, 2025. EOS software access requires an arrangement with Arista - no software entitlement is included with this hardware.
Q. What condition is the DCS-7050QX-32S supplied in by T.E.S IT-SOLUTIONS?
Refurbished. The 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-32S 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.