REFURBISHED
Arista
Arista DCS-7050S-64-R Refurbished 48-Port 10GbE Switch
MPN: DCS-7050S-64-R
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Lifetime
Warranty
ISO 9001
Certified Testing
R2v3
Responsible Refurb
25+
Years
5K+
Customers
ISO
Certified
✓
Tested
Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.
Tested to factory specification. Backed by 25 years of enterprise trust.
This professionally tested, refurbished Arista DCS-7050S-64-R is a high-density 10/40GbE data center switch from the proven Arista 7050S series. The unit ships reset to factory defaults and has passed full port-by-port diagnostics through WhaleyComm's ISO 9001-certified inspection process. The -R suffix designates rear-to-front airflow, making this unit purpose-built for hot-aisle/cold-aisle data center deployments. It includes dual 460W AC power supplies (PWR-460AC-R) for 1+1 redundancy.The DCS-7050S-64-R delivers wire-speed Layer 2/3/4 forwarding across 48 x 1/10GbE SFP+ ports and 4 x 40GbE QSFP+ uplink ports — with each QSFP+ port breakout-capable into four independent 10GbE ports, yielding up to 64 total 10GbE ports. Switching capacity reaches 1.28 Tbps at a forwarding rate of 960 Mpps, with cut-through latency as low as 800 to 1,200 nanoseconds. The 9MB Dynamic Buffer Allocation engine intelligently redistributes packet memory to congested ports for lossless forwarding under peak load. High availability is built in via 1+1 hot-swappable power supplies and N+1 hot-swappable fans. The switch runs Arista EOS — a modular, Linux-based operating system that supports Zero Touch Provisioning, VMTracer, in-service software updates, and Stateful Fault Repair.
Purchasing a refurbished Arista DCS-7050S-64-R through WhaleyComm delivers enterprise-grade 10/40GbE performance at a fraction of new list price — without compromising reliability. WhaleyComm has served 5,000+ enterprise customers over 25+ years, and every unit ships with our Lifetime Warranty and Certificate of Testing.
Technical Specifications
Part Number
DCS-7050S-64-R
Platform / Series
Arista 7050S Series
10GbE SFP+ Ports
48 x 1/10GbE SFP+
40GbE QSFP+ Uplink Ports
4 x 40GbE QSFP+ (each breakout-capable to 4x10GbE)
Total 10GbE Density (with breakout)
Up to 64 x 10GbE
Switching Capacity
1.28 Tbps
Forwarding Rate
960 Mpps
Latency (cut-through mode)
800 ns – 1,200 ns
Packet Buffer
9 MB Dynamic Buffer Allocation (DBA)
MAC Address Table
128,000 entries
IPv4 Routes
16K routes / 16K host routes
IPv6 Routes
8K routes
Multicast Groups
8K
Layer Support
Wire-speed L2 / L3 / L4
Airflow Direction
Rear-to-front (port-side exhaust)
Power Supplies
Dual 460W AC (PWR-460AC-R), hot-swappable, 1+1 redundant
Fan Modules
N+1 redundant, hot-swappable (FAN-7000-R)
Typical Power Draw
<2W/port (twinax); <3W/port (SFP/QSFP optics)
Form Factor
1U rack-mount
CPU
Dual-core x86
DRAM
4 GB
Flash
2 GB
Operating System
Arista EOS (Extensible Operating System)
Key Software Features
Zero Touch Provisioning (ZTP), VMTracer, VXLAN, MLAG, ECMP (32-way), TRILL, sFlow, LANZ, in-service software updates, Stateful Fault Repair (SFR)
Optional Storage
50 GB SSD (DCS-7050S-64-D# variant)
Dimensions
44.5 x 436 x 470 mm (1.75 x 17.2 x 18.5 in), 1U
Weight
8.2 kg (18.1 lb)
Operating Temperature
0 to 40 degrees C (32 to 104 degrees F)
Ideal Use Cases
Data Center Leaf Switch (Leaf-Spine Architecture)
The DCS-7050S-64-R's 1.28 Tbps capacity and 32-way ECMP routing make it an ideal leaf node in a two-tier leaf-spine fabric, providing high-density 10GbE server connectivity with predictable, low-latency performance.
High-Performance Computing (HPC) Clusters
Cut-through forwarding latency as low as 800 ns enables the sub-microsecond inter-node communication demanded by HPC and financial trading workloads where every nanosecond matters.
Server Virtualization and Cloud Environments
Native VXLAN support and VMTracer integration allow the switch to interoperate directly with hypervisor environments, making it well-suited for VMware and OpenStack cloud deployments.
Hot-Aisle/Cold-Aisle Data Centers
The rear-to-front (-R) airflow exhausts heat toward the hot aisle, aligning with standard hot-aisle containment designs and maintaining efficient thermal management without supplemental cooling infrastructure.
Network Automation and DevOps Pipelines
Arista EOS's open Linux kernel, REST API, and Zero Touch Provisioning capabilities allow network teams to automate provisioning, configuration management, and monitoring at scale.
Enterprise Core or Aggregation Upgrades
Organizations refreshing aging 1GbE aggregation layers can leverage the DCS-7050S-64-R's 48 SFP+ ports for a direct, cost-effective migration path to 10GbE at the access or aggregation tier.
What's Included
Arista DCS-7050S-64-R 48-Port 10/40GbE Switch
Dual 460W AC power supplies (PWR-460AC-R) — installed
Hot-swappable fan modules (FAN-7000-R) — installed
Rack-mount kit (KIT-7000)
Power cords (x2)
Console cable
Certificate of testing and factory reset
WhaleyComm Lifetime Warranty certificate
Lifetime Warranty — No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. We have stood behind our hardware for 25 years and 5,000+ customers — that is not a marketing line, it is our operating standard.
Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
Compatible Optics & Cables (SFP+ — 10GbE)
✓
SFP-10G-SR — 10GBASE-SR Multimode Fiber
✓
SFP-10G-LR — 10GBASE-LR Single-Mode Fiber
✓
SFP-10G-ER — 10GBASE-ER Single-Mode Fiber
SFP-10G-T — 10GBASE-T Copper (verify compatibility)
✓
DAC-SFP-10G — 10GbE Direct Attach Copper (Twinax)
Compatible Optics & Cables (QSFP+ — 40GbE)
✓
QSFP-40G-SR4 — 40GBASE-SR4 Multimode Fiber
✓
QSFP-40G-LR4 — 40GBASE-LR4 Single-Mode Fiber
✓
CAB-Q-Q-1M / 3M — QSFP+ to QSFP+ Direct Attach Copper
✓
CAB-Q-S-1M — QSFP+ to 4x SFP+ Breakout Cable (40G to 4x10G)
✓
Compatible Spare Parts
✓
PWR-460AC-R — 460W AC Rear-to-Front Power Supply
✓
PWR-460DC-R — 460W DC Rear-to-Front Power Supply
✓
FAN-7000-R — Rear-to-Front Fan Module
✓
Compatible Licenses
✓
LIC-FIX-2-E — Enhanced L3 License (BGP, OSPF, ISIS, PIM, NAT)
✓
LIC-FIX-2-V — Virtualization License (VMTracer)
✓
LIC-FIX-2-Z — Monitoring & Provisioning License (ZTP, API, OpenFlow)
For compatibility verification specific to your environment, contact our engineering team: +1 214 607-4800 or sales@whaleycomm.com
Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
Shipping
Orders typically ship within 1-2 business days after payment confirmation. Tracking details are shared once the order has been dispatched.
Returns
Eligible products can be returned according to WhaleyComm's return policy. For DOA, warranty, or product-related issues, contact the support team for replacement or resolution.
Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
The -R suffix designates rear-to-front airflow, meaning cool air enters from the rear (non-port side) and exhausts out the front (port side). This configuration is designed for hot-aisle containment setups where the port side faces the hot aisle, ensuring proper thermal management in standard data center rack deployments.
Yes. Each of the four QSFP+ ports supports 40GbE natively or can be configured to operate as four independent 10GbE ports using a breakout cable. This means the switch can provide up to 64 total 10GbE ports, maximizing server-facing density without adding additional hardware.
The switch runs Arista EOS (Extensible Operating System), a modular Linux-based OS common across all Arista platforms. EOS supports Zero Touch Provisioning, REST and eAPI interfaces, VMTracer for hypervisor integration, and in-service software updates — enabling full network automation and DevOps-style workflows.
Yes. Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it at no cost — no time limits, no questions asked.
Every unit goes through our ISO 9001-certified testing process: full power-on diagnostics, port-by-port functionality testing, firmware verification, factory reset, and final inspection. A Certificate of Testing ships with every unit.
Arista DCS-7050S-64-R Refurbished 48-Port 10GbE Switch
$399.00
Arista
Arista DCS-7050S-64-R Refurbished 48-Port 10GbE Switch
MPN: DCS-7050S-64-R
$399.00
In Stock — Ships Same Day
