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Cisco QSFP-100G-ER4L-S 100GBASE QSFP Transceiver, 40KM LC, SMF

VENDOR: CISCO Mfg Part#: QSFP-100G-ER4L-S= UPC#: 882658974564
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$43,508.45
$43,508.45
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MSRP: $88,710.47
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  • Supports 100GBASE-ER4 standard with up to 40km reach when FEC is used
  • Utilizes four wavelengths with integrated multiplexing/demultiplexing
  • Duplex LC connectors with G.652 µm single-mode fiber compatibility
  • Backward compatible with Cisco CPAK ER4-Lite and IEEE 100GBASE-ER4 modules
  • TAA compliant design for government and enterprise procurement
  • QSFP form factor with compact size: 0.53" H x 0.72" W x 2.85" D, and 3.53g weight

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Key Benefits

Eye-Insights
  • Enables long-distance 100G Ethernet connectivity up to 40km, ideal for large-scale distributed networks
  • Supports seamless integration into existing Cisco environments with backward compatibility to multiple transceiver platforms
  • TAA compliance ensures eligibility for government contracts and regulated deployments

Product Overview

The Cisco QSFP-100G-ER4L-S transceiver is built for high-capacity 100G Ethernet applications requiring long-distance reach over single-mode fiber (SMF). With support for link lengths up to 40km when used with Forward Error Correction (FEC), this module enables efficient, scalable data center interconnects and carrier-grade networks. The device transports the 100G Ethernet signal using four wavelength channels on a standard duplex LC connector setup, with integrated multiplexing and demultiplexing for simplified integration and deployment.

Designed to support the G.652 µm fiber optic standard, the module ensures consistent signal integrity across long distances. It provides backward compatibility with Cisco’s CPAK ER4-Lite modules (25km) and IEEE 100GBASE-ER4 CFP Ethernet modules (30km), while also interoperating with IEEE 100GBASE-LR4 modules up to 10km, enhancing flexibility in multi-platform environments. With compact QSFP form factor dimensions (0.53" height x 0.72" width x 2.85" depth) and a weight of 3.53g, the transceiver offers robust performance in a space-efficient design, complying with TAA regulations for government procurement.

Specifications

Product Overview
Manufacturer Cisco Systems, Inc
Brand Name Cisco
Product Name 100GBASE QSFP Transceiver, 25-40KM Reach Over SMF, Duplex LC
Product Type QSFP
Manufacturer Part Number QSFP-100G-ER4L-S=
UPC 882658974564
Form Factor QSFP28
Weight 3.53 g
Power Consumption (Maximum) 4.5 W

Wireless Features

Compliance & Origin
Country of Origin China / Japan
TAA Compliant Yes
RoHS Compliant Yes
MTBF (Mean Time Between Failures) Over 1,000,000 hours
Safety Standards EN 60950-1, EN 60825-1
EMC Standards EN 55032, EN 55024
Certification CE, FCC, UL, C-Tick

Advanced Security Features

Interfaces
Interface Type 100GBase-ER4
Port Type LC Duplex
Port Count 1
Interface Connector Type Duplex LC
Data Rate 100 Gbps
Host Interface QSFP28
Wavelengths 1295.56 nm, 1300.05 nm, 1304.58 nm, 1309.14 nm
Digital Diagnostics Monitoring (DDM) Yes

Physical & Environmental
Height 0.53 in (13.50 mm)
Width 0.72 in (18.40 mm)
Depth 2.85 in (72.40 mm)
Fiber Type Supported Single-mode
Media Type Supported Optical Fiber
Fiber Optic Cable Standard G.652 µm
Maximum Reach Without FEC 30 km
Maximum Reach With FEC 40 km
Operating Temperature Range 0°C to 70°C (32°F to 158°F)
Storage Temperature Range -40°C to 85°C (-40°F to 185°F)
Relative Humidity (Operating) 5% to 85% (non-condensing)

Cloud Management & Licensing
Management Interface Via compatible Cisco network equipment
License Requirement No additional license required