CISCO
CISCO QSFP-100G-4W40-I= 100G QSFP28 trnscvr 4WDM-40 40km SMF d
Mfg Part Number: QSFP-100G-4W40-I= , Item #: 4487819
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Price: $66,803.88
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Last Updated: May 26, 2026
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The Cisco QSFP100 4W40-I supports link lengths of up to 40km over a standard pair of G.652 single-mode fiber with duplex LC connectors. The 100 Gigabit Ethernet signal is carried over four wavelengths. Multiplexing and demultiplexing of the four wavelengths are managed within the device. Full 40km reach requires the use of FEC on the host platform. Without FEC, the reach is 30km. The QSFP100 4W40-I provides backward compatibility with Cisco's CPAK ER4-Lite, whose reach is up to 25km, and with IEEE 100GBASE-ER4 standardized transceivers, such as Cisco's CFP 100G ER4, up to 30km. It also interoperates with Cisco's QSFP100 and CPAK IEEE 100GBASE-LR4 modules up to 10km. The Cisco QSFP100 4W40-I supports industrial temperature range.
Main Specification
| General Information | |
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | QSFP-100G-4W40-I |
| Manufacturer Website Address | http://www.cisco.com |
| Brand Name | Cisco |
| Product Name | QSFP Module |
| Product Type | QSFP |
| Technical Information | |
| Application/Usage | Data Networking |
| Application/Usage | Optical Network |
| Interfaces/Ports | |
| Total Number of Ports | 1 |
| Connector Type | LC Duplex |
| Interfaces/Ports Details | 1 x LC Duplex 100GBase-4WDM-40 Network |
| Media & Performance | |
| Media Type Supported | Optical Fiber |
| Fiber Optic Cable Wavelength | 1300 nm |
| Fiber Optic Cable Wavelength | 1304 nm |
| Fiber Optic Cable Wavelength | 1295 nm |
| Fiber Optic Cable Wavelength | 1309 nm |
| Fiber Mode Supported | Single-mode |
| Ethernet Technology | 100 Gigabit Ethernet |
| Network Technology | 100GBase-4WDM-40 |
| Maximum Distance Supported | 40 km |
| Maximum Data Transfer Rate | 100 Gbit/s |
| Miscellaneous | |
| Environmental Compliance | Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 5 Year |
WARNING:: The plastic used in cable products can expose you to lead and lead components,
chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
