Cisco QSFP-100G-SR4-S 100GBASE-SR4 QSFP28 Transceiver MPO 100m OM4 MMF - Refurbished

Cisco QSFP-100G-SR4-S — Genuine 100G Short-Reach QSFP28 Transceiver

Save up to 80% over list price with this Cisco Original QSFP-100G-SR4-S transceiver module, backed by Reef Telecom's industry-leading 10-year warranty. This is a genuine Cisco optic — not a third-party compatible — fully tested and certified for plug-and-play deployment in your 100G infrastructure.

Key Specifications

• Part Number: QSFP-100G-SR4-S
• Form Factor: QSFP28 (Quad Small Form-Factor Pluggable)
• Data Rate: 100 Gbps (4x 25Gbps lanes)
• Wavelength: 850nm
• Connector: MPO-12 (MTP/MPO multifiber)
• Fiber Type: Multimode Fiber (MMF)
• Max Reach: 70m over OM3 / 100m over OM4
• Standard: IEEE 802.3bm 100GBASE-SR4
• Hot-Swappable: Yes — install without network downtime
• DDM/DOM: Digital diagnostics monitoring supported
• Condition: Refurbished — Tested & Certified by Reef Telecom
• Warranty: 10 Years

Ideal Use Cases

The QSFP-100G-SR4-S is designed for short-reach 100G Ethernet links in data centers, high-performance computing (HPC) clusters, enterprise core and distribution layers, and service provider environments. Deploy in leaf-spine architectures connecting switches, servers, and storage arrays over existing OM3/OM4/OM5 multimode fiber plant.

Platform Compatibility

Compatible with Cisco Nexus 9000, 7000, and 3000 series, Catalyst 9500 and 9300 series, ASR 9000 and 1000 series, and other platforms with QSFP28 100G ports. Interoperable with IEEE-compliant 100GBASE-SR4 interfaces.

Free shipping on orders over $300. Volume discounts available — contact us for bulk pricing on large deployments.