Specification schematic, not a product photograph or installation drawing.Cisco QSFP-100G-SR4-S · Pluggable transceiver
P/N: QSFP-100G-SR4-S
Link transceiver; check both endpoints, connectors, media and reach. Connector Type: MPO-12 (12 fibers)
Cisco / Cisco 100G interface modules and cables
Cisco QSFP-100G-B20U4-I · Pluggable transceiver
P/N: QSFP-100G-B20U4-I
Link transceiver; check both endpoints, connectors, media and reach. Connector Type: LC
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01 / Specifications
- MPN / P/N
- QSFP-100G-B20U4-I
- Manufacturer designation
- QSFP-100G-B20U4-I
- Manufacturer description
- Cisco 100GBASE BIDI 20KM reach over SMF, Duplex LC
- Source connector/form-factor designations
- Duplex LC
- Connector Type
- LC
- Optical link conditions (one source row; align lists in order)
- Nominal Wavelength (nm)=1296, 1300, 1304 and 1309nm 1274, 1278, 1282 and 1287nm; Cable Type=SMF; Core Size (Microns)=G.652; Modal Bandwidth (MHzkm)=-; Cable Distance=20km
- Selection limits
- Confirm exact host model/port, software release, FEC and supported breakout using Cisco TMG Compatibility Matrix. Fiber reach depends on the listed fiber grade, connector polish, optical budget and operating mode. Matching form factor alone does not guarantee support.
Specification source: Cisco ↗
Checked against documentation: 16.10.2026
Reference catalogue for quotation requests. Availability, production status, condition, price, lead time and warranty are individually confirmed. A listed part number is not a stock claim.
Related variants
Specification schematic, not a product photograph or installation drawing.
Specification schematic, not a product photograph or installation drawing.Cisco QSFP-100G-SL4 · Pluggable transceiver
P/N: QSFP-100G-SL4
Link transceiver; check both endpoints, connectors, media and reach. Connector Type: MPO-12 (12 fibers)
Specification schematic, not a product photograph or installation drawing.Cisco QSFP-100G-SR1.2 · Pluggable transceiver
P/N: QSFP-100G-SR1.2
Link transceiver; check both endpoints, connectors, media and reach. Connector Type: LC
Specification schematic, not a product photograph or installation drawing.Cisco QSFP-40/100-SRBD · Pluggable transceiver
P/N: QSFP-40/100-SRBD
Link transceiver; check both endpoints, connectors, media and reach. Connector Type: LC