Cisco QSFP-100G-SR4-S — 100G Short-Range QSFP28 Transceiver

Save up to 80% over new list price on this genuine Cisco QSFP-100G-SR4-S 100GBASE-SR4 transceiver. Backed by Reef Telecom's industry-leading 10-year warranty and fully tested to OEM specifications, this refurbished optic delivers the same performance as new — at a fraction of the cost.

Technical Specifications

• Part Number: QSFP-100G-SR4-S
• Form Factor: QSFP28
• Data Rate: 100Gbps (4x 25Gbps lanes)
• Interface Standard: 100GBASE-SR4 (IEEE 802.3bm)
• Wavelength: 850nm
• Connector: MPO-12 (MTP/MPO)
• Fiber Type: Multimode Fiber (MMF)
• Max Reach: 70m (OM3) / 100m (OM4)
• Power Supply: 3.3V, low power consumption
• Digital Diagnostics: DOM/DDM supported
• Hot-Swappable: Yes — install without network downtime

Platform Compatibility

Tested and compatible with Cisco Nexus 9000, 3000, and 7000 series, Catalyst 9500 and 9300 series switches, and ASR 9000 routers. Also supports NVIDIA DGX, Dell PowerEdge, and HPE Apollo AI server platforms in leaf-spine data center architectures.

Ideal Use Cases

• High-performance data center interconnects (rack-to-rack)
• AI/ML cluster networking between GPU servers and leaf switches
• Storage area network (SAN) 100G uplinks
• Spine-leaf fabric upgrades from 40G to 100G

Compatible with OM3, OM4, and OM5 multimode fiber. Volume discounts available for large deployments. Free shipping on orders over $300.

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.