Cisco QSFP-100G-ER4L-S Compatible 100GBASE QSFP Transceiver, 25-40KM reach over SMF, Duplex LC
Cisco compatible QSFP-100G-ER4L-S - Key Features
- Compatibility: Cisco
- Media Type: Single-Mode Fiber (SMF)
- Connector: Double LC/UPC
- Fiber Count: Duplex
- Maximum Distance: 40 km
- Guaranteed Link Budget: 22 dB
- Tx Wavelenght: 1310 nm
- Supported Data Rate: 112 Gbps
- DDM/DOM: Supported
- Forward Error Correction (FEC): Host FEC Supported
- Temperature Range: Standard 0°-70°C
Cisco QSFP-100G-ER4L-S Price
SKU:100G-QSFP28-40-CI
In Stock - Ships Next Business DayCisco compatible QSFP-100G-ER4L-S 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 | 40 km |
Guaranteed Link Budget | 22 dB |
TX Wavelenght | 4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm) |
RX Wavelenght | 4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm) |
Supported Data Rate | 112 Gbps |
Supportet 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 | -2 dBm |
Average Launch Power (Max) Each Lane | 4 dBm |
Extinction Ratio (Min) | 4 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 (Min) Each Lane | -21 dBm |
Average Receiver Sensitivity (Max) Each Lane | -18 dBm |
Receiver Overload | -1 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power Consumption (Max) | 4.5 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-ER4 Lite, 128GFC Gen 6, OTN OTU4, QSFP28 MSA, SFF-8636 (Management Interface for 4-lane modules), SFF-8665 |
Cisco compatible QSFP-100G-ER4L-S Datasheet
v2Complete technical specifications and product details
Cisco compatible QSFP-100G-ER4L-S Description
QSFP-100G-ER4L-S is Cisco's S-class part number for a 100GBASE-ER4 Lite QSFP28 transceiver. The S-class designation means this module supports 100G Ethernet only (no OTN or FCoE) at a lower price point than the non-S variant, with identical optical specifications. This EDGE compatible module matches the original Cisco specifications with EEPROM coded for Cisco IOS and NX-OS recognition. It operates over duplex single-mode fiber at four LAN-WDM wavelengths (1295.56, 1300.05, 1304.58, and 1309.14 nm), reaching up to 40 km with host FEC or 30 km without FEC.
The module uses EML transmitters and APD (Avalanche Photodiode) receivers, carrying four lanes at 25.78125 Gbps each for an aggregate 103.125 Gbps line rate. DDM/DOM provides real-time readings of TX/RX optical power, laser bias current, temperature, and supply voltage. Maximum power consumption is 4.5 W from a single 3.3 V supply. Operating temperature range is 0 to 70 °C.
The QSFP-100G-ER4L-S is supported on Cisco Nexus 3000 and 9000 series, Catalyst 9300X, 9500, and 9600, ASR 900/903/1000/9000, and NCS 540/560/5500 platforms. Our compatible module is coded with Cisco-recognized EEPROM values, so no special CLI commands are needed. It operates as a plug-and-play replacement in Cisco equipment.
The QSFP-100G-ER4L-S uses LAN-WDM wavelengths (1295-1309 nm). It is not interoperable with CWDM4 modules such as QSFP-100G-CWDM4-S, which use a different wavelength grid (1271-1331 nm). Both ends of a link must use the same wavelength plan. Verify the optic type on each end before deployment.
Our compatible QSFP-100G-ER4L-S is CE and RoHS certified, QSFP28 MSA-compliant, and conforms to IEEE 802.3bm (100GBASE-ER4 Lite). Before delivery, every module undergoes optical parameter measurement, connector cleanliness inspection, and EEPROM data validation testing.
For volume pricing, lead times, or technical questions about the QSFP-100G-ER4L-S, contact our sales team. We can help match the right module to your Cisco deployment.
Frequently Asked Questions
What does the -S suffix mean on QSFP-100G-ER4L-S?
The -S denotes Cisco's S-class optics line. S-class modules support 100G Ethernet only (no OTN, FCoE, or WAN-PHY), operate at commercial temperature (0-70 °C), and are not TAA-compliant. The optical specifications are identical to the non-S variant. For standard enterprise and data center Ethernet deployments, S-class is functionally equivalent at a lower cost.
Which Cisco platforms support the QSFP-100G-ER4L-S?
Supported platforms include Nexus 3000 and 9000 series, Catalyst 9300X, 9500 (including C9500-32C), and 9600, ASR 900/903/1000/9000, NCS 540/560/5500/6000, and CBR-8. Check the Cisco Optics Compatibility Matrix (tmgmatrix.cisco.com) for your specific platform and IOS version.
Do I need special CLI commands for a compatible QSFP-100G-ER4L-S on Cisco?
No. Our compatible QSFP-100G-ER4L-S is coded with Cisco-recognized EEPROM values and works as a plug-and-play replacement. The service unsupported-transceiver and no errdisable detect cause gbic-invalid commands are not needed. The module is recognized by Cisco IOS, IOS-XE, and NX-OS without any additional configuration.
Is QSFP-100G-ER4L-S compatible with CWDM4 modules?
The QSFP-100G-ER4L-S uses LAN-WDM wavelengths (1295-1309 nm) and is interoperable with other LAN-WDM modules such as QSFP-100G-LR4-S on the same fiber link. It is not compatible with CWDM4 modules like QSFP-100G-CWDM4-S, which use a different wavelength grid (1271-1331 nm). Always verify both ends use the same wavelength plan before deployment.