QSFP-100G-SR4: Data Sheet

The QSFP-100G-SR4-S is Cisco's standard multimode QSFP28 100G module for data center spine-leaf architectures and Nexus 9300/9500 and UCS interconnections. It supports distances of 70m over OM3 and 100m over OM4. It uses 4 parallel 25G lanes over MPO-12 fiber. Complete data sheet.

Specifications

• Data rate: 100 Gbps (100GBASE-SR4)
• 4 lanes × 25 Gbps
• Fiber: multimode OM3 (70m) / OM4 (100m) / OM5 (100m)
• Connector: MPO-12 (or compatible MTP-12)
• Wavelength: 850 nm
• Power consumption: 3.5W max
• DOM: supported (per-lane monitoring)

Compatibility

• Nexus 9300-EX/FX/GX (QSFP28 ports)
• Nexus 9500 with 100G modules
• Catalyst 9500 with 100G uplink modules
• UCS 6400 Fabric Interconnects
• Nexus 9300 spine switches in an ACI fabric or standalone deployment

Pricing

• Brand-new, genuine Cisco QSFP-100G-SR4-S: €1,190 excluding VAT
• Refurbished Cisco QSFP-100G-SR4: €590 excluding VAT
• 100% compatible OPTINOC alternative: €295 excluding VAT (75% savings)

100G alternatives by requirement

• QSFP-100G-LR4-S: single-mode 10 km (4×25G WDM) — €3,890 excluding VAT
• QSFP-100G-DR-S: single-mode 500m (single lane 100G PAM4) — €2,490 excluding VAT
• QSFP-100G-FR-S: single-mode 2 km — €2,890 excluding VAT
• QSFP-100G-AOC1M to AOC30M: integrated active optical cable — €450-890 excluding VAT
• QSFP-100G-CU1M to CU5M: passive copper DAC cable — €295-890 excluding VAT

Breakout: 1× QSFP28 to 4× SFP28

The QSFP-100G-SR4 supports 4×25G breakout operation:

• MPO to 4× LC duplex breakout cable (or 4× SFP28-SR)
• Each 25G lane operates independently through an NX-OS virtual port
• Configuration: interface breakout module 1 port 1 map 10g-4x
• Ideal for aggregating 4× 25G servers through 1 QSFP28 switch port

MPO/MTP cables and connectivity

• MPO-12 trunk 3m: €145 excluding VAT
• MPO-12 trunk 5m: €195 excluding VAT
• MPO-12 trunk 10m: €290 excluding VAT
• MPO to 4× LC breakout: €290 excluding VAT (for 25G SFP28 interoperability)
• Polarity: Type A/B/C depending on topology (confirm with the provider)

DAC vs AOC vs optical: when to choose each option

• Copper DAC <5m: lower cost, low power consumption, and minimal latency
• AOC 5-30m: no separate connectors, plug-and-play, and prevents compatibility mismatches
• SR4 optical: maximum flexibility with existing fiber; requires an MPO patch cord

Order from OPTINOC

Brand-new, genuine Cisco QSFP-100G-SR4 or certified 100% compatible OPTINOC alternative. EEPROM coding for Nexus/Catalyst/UCS. Delivery within 24-48 hours in France, with a lifetime warranty. Turnkey spine-leaf configurations.