100GBASE-ER4 QSFP28 Compatible Transceiver: 100G-QSFP28-42
100GBASE-ER4 QSFP28 Transceiver Overview
EDGE's 100G-QSFP28-42 is a 100GBASE-ER4 QSFP28 transceiver built on 4-channel LAN WDM optics, rated for 60 km reach over single-mode fiber with host FEC enabled (40 km without FEC). The higher optical budget, up to 28 dB with FEC (24 dB without), gives more margin for long-haul point-to-point Ethernet, Fibre Channel, and OTN links than a standard 40 km ER4 Lite module. 100GBASE-ER4 is defined in IEEE 802.3ba Clause 88; link budget should be verified against the deployment's specific span loss before installation.
- Media Type: Single-Mode Fiber (SMF)
- Connector: Double LC/UPC
- Fiber Count: Duplex
- Maximum Distance: 60 km
- Average Link Budget: 28 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
100GBASE-ER4 Lite QSFP28 Pricing
SKU:100G-QSFP28-42
In Stock - Ships Next Business Day100GBASE-ER4 QSFP28 Compatible Transceiver Specification
Form Factor | QSFP28 |
Modulation | NRZ (Non-Return to Zero) |
Media Type | Single-Mode Fiber (SMF) |
Connector | Double LC/UPC |
Fiber Count | Duplex |
Maximum Distance | 60 km |
Average Link Budget | 28 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 | 0 dBm |
Average Launch Power (Max) Each Lane | 4.5 dBm |
Extinction Ratio (Min) | 6 dB |
Receiver Type | APD 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 (Max) Each Lane | -28 dBm |
Receiver Overload | 0 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power Consumption (Max) | 6.5 W |
Power | +3.3V single power supply |
Compliance | CE, RoHS, Class 1 FDA and IEC60825-1 Laser Safety Compliant, IEEE 802.3ba, 100GBASE-ER4, 128GFC Gen 6, OTN OTU4, QSFP28 MSA, SFF-8636 (Management Interface for 4-lane modules), SFF-8665 |
100GBASE-ER4 QSFP28 Compatible Transceiver Datasheet
v6Complete technical specifications and product details
100GBASE-ER4 QSFP28 Compatible Transceiver Description
The 100G-QSFP28-42 is a 100GBASE-ER4 QSFP28 transceiver built on four-channel LAN WDM optics for extended-reach single-mode links, terminating on duplex LC/UPC connectors in the QSFP28 MSA form factor.
100GBASE-ER4 is defined in Clause 88 of IEEE 802.3, originally published as IEEE Std 802.3ba, with a 40 km reach baseline. This module reaches 60 km with host FEC enabled at a 28 dB average link budget, and 40 km with a 24 dB budget without FEC. That is an extended-reach ER4 implementation rather than the 40 km ER4 Lite class typical of QSFP28-badged modules. Actual link budget should be verified against the deployment's specific span loss before installation.
The transmit path uses an EML laser across four LAN WDM wavelengths (1295.56, 1300.05, 1304.58 and 1309.14 nm) modulated with NRZ, with 0 to +4.5 dBm launch power per lane and a minimum 6 dB extinction ratio. The receive path uses an APD photodiode rated to -28 dBm receiver sensitivity without FEC and 0 dBm overload, with DDM/DOM diagnostics per SFF-8636.
The module supports 100 Gigabit Ethernet (103.125 Gbps), 4x32G Fibre Channel (112.2 Gbps) and OTU4 (112 Gbps) framing, within a 112 Gbps maximum supported data rate across the four lanes.
Operating temperature is rated 0°C to 70°C, with storage from -40°C to 85°C, at 6.5 W maximum power (4 W typical) from a 3.3 V supply. Compliance includes CE, RoHS, Class 1 laser safety to FDA and IEC 60825-1, IEEE 802.3ba, QSFP28 MSA, SFF-8636 and SFF-8665.
Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For project-quantity pricing or alternative vendor coding, contact our sales team.
Frequently Asked Questions
What is the difference between 100GBASE-ER4 and 100GBASE-ER4 Lite, and which is this module?
100GBASE-ER4 is defined in Clause 88 of IEEE 802.3, originally published as IEEE Std 802.3ba. This module is a true ER4 implementation rated for 60 km reach with host FEC and a 28 dB average link budget, above the 40 km IEEE Clause 88 baseline and above the lower link budget typical of ER4 Lite QSFP28 modules, which is an OEM-defined variant rather than an IEEE-defined class.
Does this 100GBASE-ER4 module require host FEC, and what reach does it give without FEC?
Host FEC extends reach to 60 km with a 28 dB average link budget. Without FEC, the specified reach is 40 km with a 24 dB budget. Actual reach depends on the host platform's FEC support and on the deployment's actual span loss.
Is 100GBASE-ER4 defined by IEEE 802.3ba or IEEE 802.3bm?
The 100GBASE-ER4 PMD itself is defined in Clause 88, originally published as IEEE Std 802.3ba. IEEE 802.3bm defines other 100 Gigabit Ethernet PMDs and electrical interfaces used across QSFP28 modules generally, but it does not define the ER4 PMD.
What does the 60 km reach of this module depend on?
The 60 km figure depends on host FEC being enabled and on the deployment's cabled span loss staying within the 28 dB average link budget. Per TIA FOTC guidance on engineered single-mode links, spans that exceed the standard 100GBASE-ER4 operating range must not exceed the specified insertion loss budget for the link to close reliably; span loss should be verified against the actual fiber plant before installation.