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Delivered stable 100G CWDM4 performance over 2km SMF.
QSFP-100G-CWDM4-S=
100GBASE CWDM4 QSFP TRANSCEIVER LC 2KM OVER SMF
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QSFP-100G-CWDM4-S=
100GBASE CWDM4 QSFP TRANSCEIVER LC 2KM OVER SMF
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QSFP-100G-CWDM4-S= is a QSFP transceiver module engineered for high-speed, 100G Ethernet applications. It employs LC optical connectors and leverages the CWDM4 transmission technique over single-mode fiber to support short-range data communications, making it an ideal solution for data centers, enterprise interconnects, and telecom network deployments.
QSFP-100G-CWDM4-S= features a compact QSFP form factor with industry-standard physical dimensions, ensuring seamless integration into modern networking equipment. Designed to meet rigorous performance and reliability standards, this transceiver supports Ethernet protocols and is optimized for applications that demand efficient, high-bandwidth, and reliable communication over distances up to 2 km.
QSFP-100G-CWDM4-S= price is $4,621.00, a 73.9% saving from the Cisco list price of $17,691.00. QSFP-100G-CWDM4-S= is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QSFP-100G-CWDM4-S= for additional pricing. Browse the full Cisco 100G Optical Modules series or explore all Cisco products.
To get the detailed certification, please go to the Compliance Center.
 QSFP-100G-CWDM4-S= |  CPAK-100G-PSM4= |  QSFP-100G-FR-S= |  CPAK-10X10G-ERL= |  CPAK-100G-ER4L= | |
|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Connector Type | LC | LC | LC | LC | LC |
| Data Rate | 100G | 100G | 100G | 10G | 100G |
| Depth | 3.00 inches | 0.95 inches | N/A | N/A | N/A |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Form Factor | QSFP | QSFP | QSFP28 | QSFP+ | QSFP28 |
| Height | 0.35 inches | 0.65 inches | N/A | N/A | N/A |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 2km | 500 meters | 2000 meters | 80 km | 40 km |
| Network Interface | Fiber | Ethernet | Fiber | Ethernet | Fiber |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 6.0W | 8.5W | N/A | N/A | N/A |
| Product Name | QSFP-100G-CWDM4-S= | CPAK-100G-PSM4= | QSFP-100G-FR-S= | CPAK-10X10G-ERL= | CPAK-100G-ER4L= |
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Transmission Distance | Short-Range | Short-Range | Long-Range | Long-Range | Long-Range |
| Wavelength | CWDM4 (1270nm-1330nm) | 1310nm | 1310 nm | 1310 nm | 1310 nm |
| Weight | 0.07 lbs | 0.25 lbs | N/A | N/A | N/A |
| Width | 3.46 inches | 0.80 inches | N/A | N/A | N/A |
Delivered stable 100G CWDM4 performance over 2km SMF.
Strong optical stability and clean LC connectivity.
Reliable 2km reach with consistent throughput.
Easy integration into existing 100G infrastructure.
Maintained steady bandwidth during peak operations.
High quality optics with predictable latency.
Excellent short to mid-range 100G solution.
The QSFP-100G-CWDM4-S= is a 100GBASE CWDM4 QSFP+ optical transceiver module designed for 2 km transmission over single-mode fiber with LC duplex connectors.
It supports standard single-mode fiber (SMF) compliant with ITU-T G.652 specifications for distances up to 2 km.
The module uses duplex LC connectors to ensure reliable mating with SMF cable assemblies.
It operates across four coarse WDM channels at 1271 nm, 1291 nm, 1311 nm and 1331 nm, meeting CWDM4 channel spacing requirements.