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Arista Networks

Arista DCS-7148SX 48x SFP+ 10GbE 960Gbps 1U Low-Latency Switch

Part no.DCS-7148SX

€179.00

In stockCondition: Refurbished

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How this unit is built

Built to your work order from a recovered chassis, with refurbished power supplies and fans for the airflow you need, then loaded with compatible firmware and operating system and tested before it ships.

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Description

Arista DCS-7148SX — 48x SFP+ 10GbE 1U Low-Latency Data Center Switch (7100 Series)

Technical Identity

The Arista DCS-7148SX (7148SX) is a 1U data-center Ethernet switch from the Arista 7100 series with 48x SFP+ ports supporting 1/10GbE modules, 960 Gbps of throughput and 720 Mpps forwarding, positioned by Arista as a very low latency L2/3/4 platform. Stock label for this listing: "DCS7148SX" — the same model as DCS-7148SX. Condition: Refurbished.

Specifications

  • Brand: Arista Networks
  • Model / MPN: DCS-7148SX
  • Product type: Data-center Ethernet switch (fixed configuration)
  • Product family: Arista 7100 Series
  • Ports: 48x SFP+ (1/10GbE SFP and SFP+ options)
  • Throughput: 960 Gbps
  • Forwarding rate: 720 Mpps
  • Latency class: very low latency L2/3/4 per the Arista 7100 series datasheet (exact figure varies by variant — verify per unit)
  • Form factor: 1U rack-mount, redundant power and cooling
  • Airflow / PSU: -F or -R variant per unit label — verify before order
  • Operating system: Arista EOS (legacy trains only; platform end-of-life)
  • Condition: Refurbished

Engineering Context

The 7148SX was Arista's dense low-latency 10GbE workhorse of the 7100 generation, adopted heavily in financial trading and other latency-sensitive environments. It provides wire-speed forwarding across all 48 SFP+ ports with latency characteristics that remain consistent across packet sizes per the 7100 series datasheet, and runs Arista EOS with its Linux-based operational tooling.

Use Cases

  • Spare unit for legacy 7100-series deployments still in service
  • Lab, test-bench and training environments needing many inexpensive 10GbE ports
  • Basic 1/10GbE aggregation where modern EOS support is not required
  • Legacy low-latency environments standardized on the 7148SX platform

What This Is NOT

  • NOT the DCS-7148S. The 7148SX is the lower-latency variant; confirm the exact model on the unit label.
  • NOT a 25/40/100GbE switch. SFP+ 1/10GbE only; SFP28, QSFP+ and QSFP28 are not supported.
  • NOT an InfiniBand switch. Ethernet only.
  • NOT a currently supported Arista platform. The 7100 series is end-of-life with no current EOS train support.
  • 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: 10GbE SFP+ and 1GbE SFP optical or copper modules; SFP+ DAC subject to platform support — verify module compatibility for this legacy platform before deployment.
  • Typical peer platforms: 1/10GbE servers and switches of the same era.
  • Airflow: the -F / -R airflow variant must match your hot-aisle/cold-aisle design — confirm the variant on the unit label before ordering.
  • Software: legacy EOS images only; availability requires an Arista account/entitlement.
  • Pre-deployment verification: confirm airflow, PSU type, module compatibility and EOS image availability against the unit label and Arista documentation.

Frequently Asked Questions (FAQ)

Q. What is the Arista DCS-7148SX?
The DCS-7148SX is a 1U data-center Ethernet switch from the Arista 7100 series with 48x SFP+ ports supporting 1/10GbE optics, 960 Gbps of throughput and a forwarding rate of 720 Mpps, designed as a very low latency L2/3/4 platform running Arista EOS.

Q. Is DCS7148SX the same as DCS-7148SX?
Yes. DCS7148SX is a label spelling of the same model; the canonical Arista part number is DCS-7148SX.

Q. How does the DCS-7148SX differ from the DCS-7148S?
Both are 48-port SFP+ members of the 7100 series; the 7148SX is the lower-latency variant of the family. Confirm the exact model string on the unit label if the distinction matters for your deployment.

Q. Does the DCS-7148SX support 25GbE, 40GbE or QSFP ports?
No. All 48 ports are SFP+ cages for 1/10GbE SFP/SFP+ modules. SFP28 25GbE, QSFP+ 40GbE and QSFP28 100GbE are not supported.

Q. Which Arista EOS versions support the DCS-7148SX?
The 7100 series is a legacy, end-of-life product line that no longer receives EOS software support. The final supported EOS release should be verified against Arista's end-of-support notices. No software entitlement is included with this hardware.

Q. What condition is the DCS-7148SX 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 or -R) and PSU configuration are per unit label - confirm before order.

Why T.E.S IT-SOLUTIONS

Every DCS-7148SX 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. See tes-itsolutions.com.