Arista 7150 Series Switches

Arista 7150 Series Switches
Ultra-Low Latency 10/40G Performance for High-Speed Networks
The Arista 7150 Series delivers some of the industry’s lowest latency switching performance, making it a leading platform for high-frequency trading (HFT), financial services, cloud computing, and latency-sensitive enterprise environments. With consistent microsecond-level switching and support for 10G and 40G Ethernet, the 7150 Series provides predictable, ultra-fast forwarding across a compact, energy-efficient footprint.

BrightStar Systems offers fully tested, used and refurbished Arista 7150 switches, including popular models such as the 7150S, 7150SC, and 7150SX. Each switch is validated port-by-port
and backed by our 1-Year In-House Warranty.
Why Choose the Arista 7150 Series?

Ultra-low latency—as low as 350ns (model dependent)
Deterministic, consistent forwarding designed for real-time workloads
10G and 40G Ethernet support in compact 1RU platforms
Integration with Arista EOS—high stability, automation, telemetry
Precision timing features including IEEE 1588 PTP
Energy-efficient design with front-to-rear or rear-to-front airflow

These features make the 7150 Series ideal for any environment where microseconds matter.
Arista 7150 Series Model Guide
The 7150 family includes multiple configurations optimized for different port densities and latency profiles.

Model
Ports
Latency
Ideal Use Case

7150S
Up to 48 × 10G + 4 × 40G (varies by SKU)
~350ns
HFT, low-latency datacenters, trading engines

7150SC
High-density 10G with enhanced silicon
Sub-microsecond
Financial networks requiring consistent microbursts

7150SX
Ultra-low latency 10GbE + optional 40GbE uplinks
Lowest of the series
Ultra-low latency applications and algorithmic trading

Latency Performance That Sets the 7150 Apart
One of the defining characteristics of the Arista 7150 Series is its ultra-low and deterministic latency, which is significantly lower compared to most traditional datacenter switches.

Cut-through forwarding reduces latency to well under 500ns
Tuned silicon ensures predictable performance under load
Ideal for algorithmic trading, financial exchanges, and packet capture systems

Advanced Features of the 7150 Series

IEEE 1588 PTP (Precision Time Protocol) for highly accurate time sync
ZTP, eAPI, and full EOS automation capabilities
VXLAN support for modern L2/L3 data-center fabrics
LANZ (Latency Analyzer) for measuring microburst activity
Deterministic latency even with 40G uplinks

Common Deployment Scenarios

High-Frequency Trading (HFT): Ultra-consistent latency for trading systems.
Financial Exchanges: Best-in-class performance for colocated infrastructure.
Cloud & Compute Clusters: Low-latency leaf switches.
Network Monitoring: High-fidelity capture for monitoring and analytics.
Research & HPC: Ultra-low jitter interconnects.

Why Buy Refurbished Arista 7150 Switches?

Significant cost savings over new hardware
Fully tested units with verified ports and fans
1-Year In-House Warranty from BrightStar Systems
Perfect for lab, production, or low-latency edge roles
Fast availability without long OEM lead times

7150 Series vs Other Arista Switches
Here’s how the 7150 compares to other popular Arista platforms:

Model
Latency
Best For

7150 Series
~350ns
HFT, low-latency networking

7050X Series
~3–5μs
General data centers, Top-of-Rack

7280R Series
~microseconds (varies)
Spine, storage, routing

Frequently Asked Questions
Are Arista 7150 switches good for high-frequency trading?
Yes. The 7150 Series is one of the most widely used low-latency platforms in trading and
financial markets because of its ultra-consistent sub-microsecond performance.
Do 7150 switches support 40GbE uplinks?
Many models support QSFP+ 40G uplinks for aggregation or spine connectivity.
Does the 7150 Series support VXLAN?
Yes. The Arista 7150 family includes VXLAN support for modern L2/L3 data-center fabrics.
Is the 7150 still relevant compared to newer Arista switches?
Absolutely. Its low latency remains competitive, and many trading firms still rely on the
7150S/SC/SX due to its predictable forwarding characteristics.
Related Arista Categories

All Arista Products
Arista Switches
Arista 7280 Series
Arista Optics & Cables