Save significantly over new list price on the Cisco QSFP-100G-LR-S — a genuine Cisco 100GBASE-LR QSFP28 transceiver delivering 100Gbps single-lambda connectivity over single-mode fiber up to 10km. Backed by Reef Telecom's industry-leading 10-year warranty and free shipping on orders over $300.

Technical Specifications

• Part Number: QSFP-100G-LR-S
• Form Factor: QSFP28 (Quad Small Form-Factor Pluggable 28)
• Data Rate: 100Gbps (103.125Gbps via 4x25G NRZ to 1x100G PAM4)
• Wavelength: 1310nm single lambda
• Max Reach: 10km over G.652 single-mode fiber (SMF)
• Connector: Duplex LC
• Power Consumption: 4.5W max
• Digital Diagnostics: DOM via I2C interface (temperature, voltage, TX/RX power, bias current)
• Standards: IEEE 802.3cd, 100G Lambda MSA, QSFP28 MSA
• FEC: Onboard PAM4 modulation with integrated FEC
• Hot-Swappable: Yes

Platform Compatibility

Compatible with Cisco Nexus 9300, 9200, and 9500 Series switches, Catalyst 9500 and 9600 Series, ASR 9000 and ASR 1000 Series routers, and other platforms with 100G QSFP28 ports. Also supports 400G to 100G breakout applications.

Ideal Use Cases

• Data center interconnects (DCI) up to 10km
• Campus backbone and inter-building fiber links
• Enterprise core-to-distribution 100G uplinks
• High-performance computing and storage network connectivity

Why Buy from Reef Telecom?

• 10-year warranty on all refurbished equipment
• Free shipping on orders over $300
• Genuine Cisco hardware — fully tested and verified
• Volume pricing available — contact us for bulk quotes

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.