Extreme 100G-4WDM-QSFP20KM Compatible 100GBASE-4WDM-20 QSFP28

Extreme
QSFP28
100G
Duplex
20 km
100G-4WDM-QSFP20KM Extreme Compatible 100G QSFP28 20KM Transceiver

Extreme compatible 100G-4WDM-QSFP20KM - Key Features

  • Compatibility: Extreme
  • Media Type: Single-Mode Fiber (SMF)
  • Connector: Double LC/UPC
  • Fiber Count: Duplex
  • Maximum Distance: 20 km
  • Average Link Budget: 9 dB
  • Tx Wavelength: 1310 nm
  • Supported Data Rate: 112 Gbps
  • DDM/DOM: Supported
  • Forward Error Correction (FEC): Host FEC Supported
  • Temperature Range: Standard 0°-70°C

Extreme 100G-4WDM-QSFP20KM Price

Lead timeIn Stock - Ships Next Business Day
Standard recommended retail price ex VAT:
172.37
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Telecoms & Integrators Globally

Extreme compatible 100G-4WDM-QSFP20KM Specifications

Form Factor
QSFP28
Modulation
NRZ (Non-Return to Zero)
Media Type
Single-Mode Fiber (SMF)
Connector
Double LC/UPC
Fiber Count
Duplex
Maximum Distance
20 km
Average Link Budget
9 dB
TX Wavelength
4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm)
RX Wavelength
4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm)
Supported Data Rate
112 Gbps
Supported Ethernet Applications
100G Ethernet (103.125 Gbps)
Supported Fiber Channel Applications
4x 32G Fiber Channel (112.2Gbps)
Optical Transport Network (OTN) Applications
OTU4 (112 Gbps)
DDM/DOM
Supported
Forward Error Correction (FEC)
Host FEC Supported
Transmitter Type
EML Laser
Tx Wave Bandwidth
4 LAN WDM Seperated 1310 nm Lanes (15.66 nm 1294.53 – 1310.19nm) (L0 Tx center 1295.56nm, L1 Tx center 1300.05nm, L2 Tx center 1304.58nm, L3 Tx center 1309.14nm)
Average Launch Power (Min) Each Lane
-1 dBm
Average Launch Power (Max) Each Lane
4.5 dBm
Extinction Ratio (Min)
4 dB
Receiver Type
PIN photodiode
RX Wave Bandwidth
4 LAN WDM Seperated 1310 nm Lanes (15.66 nm 1294.53 – 1310.19nm) (L0 Tx center 1295.56nm, L1 Tx center 1300.05nm, L2 Tx center 1304.58nm, L3 Tx center 1309.14nm)
Average Receiver Sensitivity (Min) Each Lane
-11 dBm
Average Receiver Sensitivity (Max) Each Lane
0 dBm
Receiver Overload
3.3 dBm
Temperature Range
Standard 0°-70°C
Storage Temperature
-40° to 85°C
Relative Humidity
5 to 85%
Power Consumption (Max)
3.5 W
Power
+3.3V single power supply
Compliance
CE, RoHS, Class 1 FDA and IEC60825-1 Laser Safety Compliant, IEEE 802.3ba, IEEE 802.3bm, 100GBASE-LR4, 128GFC Gen 6, OTN OTU4, QSFP28 MSA, SFF-8636 (Management Interface for 4-lane modules), SFF-8665

Extreme compatible 100G-4WDM-QSFP20KM Datasheet

v2

Complete technical specifications and product details

Updated:Jan 16, 2026Format:PDF

Extreme compatible 100G-4WDM-QSFP20KM Description

EdgeOptic's 100G-4WDM-QSFP20KM compatible is an Extreme Networks-coded version of the EdgeOptic 100G-QSFP28-20 multi-vendor 100GBASE-LR4 20km transceiver. It is a QSFP28 module built to the 100G 4WDM-20 MSA (100GBASE-4WDM-20) specification, reaching 20km over duplex single-mode fiber with a 9 dB minimum optical budget. The four LAN-WDM channels sit at 1295.56, 1300.05, 1304.58 and 1309.14 nm and terminate on a duplex LC/UPC connector.

The 20km 4WDM-20 reach depends on host-side RS-FEC RS(528,514) per IEEE 802.3bj. The MSA assigns that error correction to the host, so the target Extreme Networks port must have RS-FEC enabled. The IEEE 802.3ba Clause 88 LAN-WDM lane plan covers the 10km LR4 baseline only; the 20km reach comes from the 4WDM-20 MSA, not from 802.3ba.

The transmitter uses an EML laser and the receiver a PIN photodiode. Per-lane launch power runs from −1 to +4.5 dBm, receiver sensitivity is −11 dBm per lane and the receiver overload point is +3.3 dBm. The module draws up to 3.5 W and operates across the 0 to 70°C commercial temperature range with full DDM/DOM diagnostics. Beyond 100G Ethernet at 103.125 Gbps, the chipset also carries 128G Fibre Channel (Gen 6, 112.2 Gbps) and OTU4 (112 Gbps), so the same part covers Ethernet, storage and OTN transport on supported host ports.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For deployment questions or bulk pricing, contact our sales team.

Frequently Asked Questions

Does 100G-4WDM-QSFP20KM require FEC enabled on the Extreme Networks port?

Yes. The 20km 4WDM-20 reach relies on host-side RS-FEC RS(528,514) per IEEE 802.3bj, which the MSA assigns to the host rather than the module. Verify that FEC mode is enabled on the target Extreme Networks port before deployment, and check the Extreme Networks documentation for the port FEC configuration on your platform and software release.