Cisco QSFP-100G-ER4L-S

SKU: Cisco QSFP-100G-ER4L-S Category: Tags: , ,


Cisco QSFP-100G-ER4L-S is 100GBASE QSFP Transceiver, 25-40KM reach over SMF, Duplex LC

Cisco QSFP-100G-ER4L-S Product Overview

Cisco QSFP100 ER4-Lite 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 ER4-Lite 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.

Cisco QSFP-100G-ER4L-S Product Pictures

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Cisco QSFP-100G-ER4L-S Product Specifications



Package type


Transmission rate

103.125Gbps (4x 25.78Gbps)



Transmission distance



Duplex LC

Fiber type

Single mode

Emitter type

4x EML

Receiver type


Transmit optical power


Minimum receiver power


Power budget


Receive overload


power consumption


Extinction ratio


Data Diagnostics (DDM/DOM)


Commercial temperature range

0 ~ 70°C(32 ~ 158°F)

Encapsulation technology

BOX  packing

CDR (Clock Data Recovery) Built-in CDR at the transmitter and receiver ends


Cisco QSFP-100G-ER4L-S Product Features

  • The maximum power consumption is 4.5W
  • Tested in a real-world environment to ensure superior performance, quality, and reliability
  • Compliant with the QSFP28 MSA standard for hot swapping
  • The high-speed electrical interface of the optical module complies with the IEEE 802.3bm standard
  • FS BOX is also supported, which can be configured in real time
  • It is used in BOX package, which has the characteristics of reliability, sealing and heat dissipation performance
  • It is a Class 1 FDA laser safety level and RoHS compliant
  • It is equipped with digital optical monitoring function to provide powerful diagnostic capabilities

Cisco QSFP-100G-ER4L-S and More 100G SFP Modules

QSFP-100G-SR4-S 100GBASE SR4 QSFP Transceiver, MPO, 100m over OM4 MMF MPO-12 (12 fibers)
QSFP-100G-SL4 100GBASE QSFP Short Link Transceivers, 30M reach over OM4 MMF MPO-12 (12 fibers)
QSFP-40/100-SRBD 100G and 40GBASE SR-BiDi QSFP Transceiver, LC, 100m OM4 MMF LC
QSFP-100G-SR1.2 100G SR-BiDi QSFP Transceiver, LC, 100m OM4 MMF LC
QSFP-100G-PSM4-S 100GBASE PSM4 QSFP Transceiver, MPO, 500m over SMF MPO-12 (12 fibers)
QSFP-100G-DR-S 100GBASE DR QSFP Transceiver, 500m over SMF LC
QSFP-100G-FR-S 100GBASE FR QSFP Transceiver, 2km over SMF LC
QSFP-100G-CWDM4-S 100GBASE CWDM4 QSFP Transceiver, LC, 2km over SMF LC
QSFP-100G-SM-SR 100GBASE CWDM4 Lite QSFP Transceiver, 2km over SMF, 10-60C LC
QSFP-100G-LR-S 100GBASE LR QSFP Transceiver, 10km over SMF LC
QSFP-100G-LR4-S 100GBASE LR4 QSFP Transceiver, LC, 10km over SMF LC
QSFP-100G-LR4-I 100GBASE LR4 QSFP Transceiver, LC, 10km over SMF, I-Temp LC
QSFP-100G-ERL-S 100GBASE ER-Lite QSFP Transceiver, 25km over SMF LC
QSFP-100G-ER4L-S 100GBASE QSFP Transceiver, 25-40KM reach over SMF, Duplex LC LC
QSFP-100G-4W40-I 100GBASE 4W40 Transceiver, 40km SMF, duplex, LC, I-Temp LC
QSFP-100G-ZR4-S 100GBASE QSFP Transceiver, 80KM# reach over SMF, Duplex LC LC

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