Trusted by 50,000+ Data Centers Worldwide

Premium Optical Transceivers
For Next-Gen Networks

Enterprise-grade fiber optic transceivers compatible with Cisco, Arista, Juniper & more. 400G/800G solutions for AI data centers and cloud infrastructure.

1G-800G
Speed Range
99.99%
Reliability
10K+
Products
Lifetime
Warranty
50K+
Active Customers
10M+
Units Shipped
99.2%
Satisfaction Rate
24/7
Tech Support
Product Portfolio

Comprehensive Optical Transceiver Solutions

From SFP modules to 800G QSFP-DD, we deliver high-performance fiber optic transceivers for every network need

SFP/SFP+

SFP & SFP+ Transceivers

Industry-standard optical transceivers supporting 1G to 10G speeds. Compatible with all major switches and routers.

  • 1G/10G speeds
  • SR/LR/ER/ZR distances
  • Single & multimode fiber
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QSFP28/QSFP56

QSFP28 Transceivers

High-density fiber optic modules delivering 100G connectivity for modern data centers and cloud networks.

  • 100G/200G speeds
  • CWDM4, SR10, LR4 options
  • Low power consumption
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QSFP-DD/OSFP

400G & 800G Transceivers

Next-generation optical transceivers for AI clusters and hyperscale data center interconnects.

  • 400G/800G speeds
  • DR4/DR8/2xFR4 variants
  • NVIDIA/Cisco certified
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DAC/AOC Cables

DAC & AOC Cables

Direct attach and active optical cables for short-reach, cost-effective data center connectivity.

  • 10G to 400G speeds
  • 0.5m to 100m lengths
  • Low latency design
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CWDM/DWDM

WDM Transceivers

Coarse and dense wavelength division multiplexing optics for maximizing fiber utilization.

  • CWDM & DWDM options
  • 18 to 80km distances
  • Telco-grade reliability
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Custom OEM

Custom OEM Solutions

Bespoke fiber optic transceiver design and manufacturing for unique network requirements.

  • Custom wavelengths
  • Private labeling
  • Volume pricing
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Data Center Solutions

400G/800G Optical Transceivers for AI Infrastructure

As artificial intelligence and machine learning workloads continue to reshape the data center landscape, the demand for high-bandwidth, low-latency optical transceivers has never been greater. FS Transceivers leads the industry in delivering next-generation fiber optic modules specifically engineered for AI clusters and high-performance computing environments.

Our 400G and 800G optical transceivers utilize cutting-edge PAM4 modulation and advanced DSP technology to deliver unprecedented bandwidth density. Whether you're building a RoCEv2 lossless network for GPU clusters or upgrading your spine-leaf architecture, our QSFP-DD and OSFP modules provide the performance and reliability your AI infrastructure demands. All fiber optic transceivers are tested in real NVIDIA, Cisco, and Arista environments to ensure seamless compatibility.

Request AI Infrastructure Quote
400G optical transceivers installed in AI data center server racks

AI-Ready 800G Infrastructure

Network engineer testing SFP modules in enterprise network environment

Enterprise Network Testing Lab

Enterprise Solutions

Compatible Transceivers for Multi-Vendor Networks

Modern enterprise networks often comprise equipment from multiple vendors, creating compatibility challenges that can drive up costs and complexity. FS Transceivers solves this problem with our comprehensive line of compatible transceivers that work seamlessly across Cisco, Arista, Juniper, HP, Dell, and dozens of other major brands.

Our fiber optic modules undergo rigorous interoperability testing in multi-vendor environments to ensure reliable operation. From SFP modules for access layer switches to QSFP28 transceivers for core aggregation, we provide cost-effective alternatives to OEM optics without compromising performance or reliability. With our lifetime warranty and advanced replacement program, enterprise IT teams can standardize on FS Transceivers with complete confidence.

Check Your Equipment Compatibility
Global Logistics

Same-Day Shipping from Global Warehouses

In the fast-paced world of network infrastructure, downtime is not an option. That's why FS Transceivers maintains strategic inventory positions across major technology hubs worldwide. Our optical transceivers ship same-day from warehouses in California, Texas, Amsterdam, Singapore, and Sydney, ensuring your fiber optic modules arrive when you need them.

Whether you need a single SFP module for an emergency repair or ten thousand QSFP transceivers for a data center rollout, our logistics network delivers. We offer flexible shipping options including overnight delivery to most major metropolitan areas. For large-scale deployments, our consignment inventory programs and scheduled delivery services help enterprise customers optimize their supply chain and reduce carrying costs.

Same-day dispatch
Global coverage
Global logistics warehouse with fiber optic transceiver inventory

Global Distribution Network

Simple Process

How to Order from FS Transceivers

From compatibility check to deployment, we make sourcing optical transceivers simple

1

Find Your Module

Use our compatibility tool or browse by form factor (SFP, QSFP, etc.) and speed (10G, 100G, 400G). Filter by distance, fiber type, and connector.

2

Verify Compatibility

Enter your switch model to confirm the optical transceiver works with your equipment. Our database covers 50,000+ devices from all major vendors.

3

Place Your Order

Order online for immediate processing or request a quote for volume pricing. We accept all major payment methods and offer net-30 terms for qualified customers.

4

Receive & Deploy

Same-day shipping with tracking. Plug-and-play installation with lifetime technical support. Start optimizing your network immediately.

Universal Compatibility

Works With Your Existing Infrastructure

Our optical transceivers are tested and guaranteed compatible with leading network equipment

Brand SFP/SFP+ QSFP+/QSFP28 QSFP-DD OSFP
Cisco
Arista
Juniper
HP/Aruba -
Dell
NVIDIA/Mellanox

✓ Fully Compatible △ Limited Models - Not Available

Customer Reviews

Trusted by Network Engineers Worldwide

See what our customers say about FS Transceivers optical modules

J

Jonathan Mitchell

Senior Network Engineer, TechCorp

"We've standardized on FS Transceivers for all our optical transceiver needs. The compatible SFP modules and QSFP transceivers work flawlessly with our Cisco and Arista switches. Saved us over $200K annually without any compatibility issues."

Verified Purchase: March 2026

A

Amanda Rodriguez

IT Director, CloudFirst Solutions

"The 400G QSFP-DD transceivers from FS Transceivers are powering our new AI cluster. They're certified compatible with our NVIDIA switches and deliver the low latency we need for machine learning workloads. Excellent fiber optic modules."

Verified Purchase: January 2026

R

Robert Chen

Infrastructure Lead, DataStream Inc

"Their CWDM optical transceivers helped us maximize our existing fiber infrastructure. The technical support team was incredibly knowledgeable about wavelength planning. Great value compared to OEM fiber optic modules."

Verified Purchase: February 2026

K

Kevin Thompson

Network Architect, FinanceHub

"FS Transceivers' 10G SFP+ modules replaced our aging Juniper optics at a fraction of the cost. Zero failures in 18 months of deployment. Their same-day shipping from the Texas warehouse is a game-changer for urgent replacements."

Verified Purchase: December 2025

L

Laura Martinez

VP of Technology, E-commerce Plus

"We deployed over 5,000 fiber optic transceivers from FS during our data center expansion. The 100G QSFP28 modules perform identically to our previous Arista optics at 60% less cost. Lifetime warranty gives us peace of mind."

Verified Purchase: November 2025

D

David Park

CTO, StartupNetwork

"As a startup, we needed reliable optical transceivers without breaking the bank. FS Transceivers delivered compatible SFP modules that work perfectly with our Dell switches. Their technical team helped us choose the right fiber optic solutions."

Verified Purchase: February 2026

FAQ

Frequently Asked Questions

Everything you need to know about optical transceivers and fiber optic modules

FS Transceivers offers a comprehensive range of optical transceivers including SFP, SFP+, SFP28, QSFP+, QSFP28, QSFP-DD, and OSFP form factors. We support speeds from 1G to 800G, covering single-mode and multimode fiber applications. Our fiber optic transceivers are compatible with major network equipment manufacturers including Cisco, Arista, Juniper, HP, Dell, and NVIDIA. All our optical modules undergo rigorous testing to ensure reliability and performance in data center, enterprise, and telecommunications environments.
Yes, all FS Transceivers optical transceivers are fully compatible with Cisco switches and routers. Our compatible transceivers support the same protocols, wavelengths, and distances as original Cisco optics but at significantly lower costs. We provide compatibility guarantees and lifetime technical support. Our SFP modules and QSFP transceivers work seamlessly with Cisco Catalyst, Nexus, and ASR series equipment. Each product is tested in real Cisco environments before shipping to ensure plug-and-play functionality.
Single-mode optical transceivers use laser diodes to transmit light through single-mode fiber with a small core diameter (9 microns), enabling transmission distances up to 120km. They are ideal for long-haul data center interconnect and telecommunications applications. Multimode fiber optic transceivers use VCSELs to transmit through multimode fiber with a larger core (50 or 62.5 microns), typically supporting distances up to 550 meters. Multimode solutions are cost-effective for short-range connections within data centers. FS Transceivers offers both types to meet diverse networking requirements, with our experts available to help you select the right optical modules for your specific infrastructure needs.
The choice between 400G and 800G optical transceivers depends on your current bandwidth requirements and future growth projections. 400G transceivers are currently the industry standard for high-density data center interconnects and provide excellent cost-performance ratio. 800G transceivers offer double the bandwidth density, making them ideal for AI/ML clusters, HPC environments, and hyperscale data centers where space and power efficiency are critical. FS Transceivers recommends 400G for most enterprise data centers upgrading from 100G, while 800G is optimal for new AI-focused infrastructure builds. We offer both QSFP-DD and OSFP form factors for 400G/800G applications, all tested for compatibility with major switch vendors.
FS Transceivers provides an industry-leading lifetime warranty on all optical transceivers and fiber optic modules. This includes free replacement for any manufacturing defects or performance issues. Our technical support team is available 24/7 via phone, email, and live chat to assist with compatibility questions, troubleshooting, and network design. We maintain global inventory with same-day shipping from warehouses in North America, Europe, and Asia-Pacific. Additionally, we offer a 30-day no-questions-asked return policy, allowing you to test our compatible transceivers risk-free in your environment. Our commitment to quality has earned us a 99.2% customer satisfaction rate across thousands of enterprise deployments.
Absolutely! FS Transceivers specializes in custom optical transceiver solutions for unique network requirements. We can manufacture fiber optic modules with specific wavelengths (CWDM, DWDM), extended temperature ranges, special distances, or proprietary form factors. Our engineering team works directly with customers to design and produce custom SFP modules, QSFP transceivers, and other optical components. Custom orders typically ship within 2-4 weeks, and we provide samples for testing before full production. Whether you need bi-directional optics, coarse WDM solutions, or special encoding formats, our OEM capabilities can meet your specifications while maintaining competitive pricing and fast turnaround times.
For standard optical transceivers including SFP, SFP+, QSFP+, and QSFP28 modules, we maintain extensive inventory and can ship most orders same-day when placed before 3 PM local warehouse time. For bulk orders exceeding 1,000 units, we offer volume pricing and can typically fulfill within 3-5 business days from our global warehouse network. High-speed 400G and 800G transceivers may require 1-2 weeks lead time for large quantities. FS Transceivers operates distribution centers in California, Texas, Amsterdam, Singapore, and Sydney to ensure fast delivery worldwide. For mission-critical projects, we offer allocation programs and consignment inventory options. Contact our sales team for specific lead times on your required fiber optic modules and transceiver types.

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