Cisco
Cisco QSFP-40G-SR4 40GBASE-SR4 QSFP+ Transceiver 850nm MMF MPO-12
PO and Net 30 available for schools, government, hospitals, and law firms.
Description
Description
Cisco QSFP-40G-SR4 40GBASE-SR4 QSFP+ Transceiver Module
Save up to 80% over new with this genuine refurbished Cisco QSFP-40G-SR4 transceiver module — backed by Reef Telecom's industry-leading 10-year warranty and free shipping on orders over $300.
Key Specifications
- Part Number: QSFP-40G-SR4
- Form Factor: QSFP+ (Quad Small Form-Factor Pluggable)
- Data Rate: 40 Gbps (4x10G lanes)
- Standard: IEEE 802.3ba 40GBASE-SR4
- Wavelength: 850nm (VCSEL)
- Connector: MPO-12 / MTP multi-fiber female
- Fiber Type: Multimode Fiber (MMF) — OM3, OM4, OM5
- Max Distance: 100m (OM3) / 150m (OM4/OM5)
- 4x10G Breakout: Yes — interoperable with 10GBASE-SR and SFP-10/25G-CSR-S interfaces
- Features: Hot-swappable, DDM/DOM support, low power consumption
Compatibility & Use Cases
This Cisco 40G QSFP+ SR4 transceiver is ideal for high-bandwidth data center interconnects, enterprise core and distribution layers, and high-performance computing environments. It supports native 40GbE links over 12-fiber parallel cable or 4x10G breakout mode using an MPO-to-duplex LC breakout cable — perfect for migrating from 10G to 40G infrastructure. Compatible with Cisco Nexus, Catalyst, and ASR series switches and routers.
Specs & Details
Specs & Details
Shipping & Warranty
Shipping & Warranty
Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.
All products include our industry-leading 10 Year Warranty backed by Reef Telecom.
We clean up after ourselves.
Ecommerce deliveries have a carbon footprint. That's why we support verified projects that remove carbon from the air.
Every delivery’s carbon footprint is calculated based on weight, shipping method, and distance traveled. We neutralize these emissions by purchasing verified carbon removal credits from groundbreaking projects.
With your purchase, you’ll join a community of proactive merchants and customers dedicated to a sustainable future. Together, we've removed emissions for over 81 million deliveries and removed over 56 thousand tonnes of carbon.
We work with a network of pioneering carbon removal companies that have been vetted by the commerce platform Shopify.
Reef Telecom Proudly Supports
-
Ocearch
2026 Monthly Shark Hero -
Coral Restoration Foundation
2025 Staghorn Donor -
Ocean Conservancy
2025 Donor
Smart IT. Clean Oceans. Boundless Possibilities.
Our goal is providing the highest quality refurbished equipment to promote environmentally-conscious equipment usage through it's lifecycle.