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1. Rate: 100G; Connector: LC; with DDM 2. Tx: EML / Rx: APD; Low Power Consumption ≤5W 3. Applied in Campus Network, Data Center and Enterprise Core Layer 4. Compatible with 200+ Vendors 5. Hot Pluggable QSFP28 MSA CompliantSee more
QSFP-100G-ER4L-S compatible optical transceiver module is designed with duplex LC connectors, reaching a link up to 40km with FEC, 30km without FEC over single-mode fiber(OS2). QSFPTEK manufactured 100GBASE-ER4 QSFP28 transceiver module is compliant with IEEE 802.3ba 100GBASE-ER4 Lite, QSFP28 MSA Compliant standard. Besides, DDM (digital diagnostics monitoring) function is supported on the 100G fiber optic transceiver to achieve real-time operating parameters monitoring. With these features, this 100G QSFP28 transceiver is widely applied in 100G telecom connections, DCI, Metro network, and high-performance computing networks.
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Part Number: |
QT-QSFP28-ER4 |
Vendor Name: |
QSFPTEK |
|
Form Factor: |
QSFP28 |
Data Rate: |
100Gbps |
|
Wavelength: |
1295~1310nm |
Distance: |
40km with FEC; 30km without FEC |
|
Connector: |
Duplex LC |
Cable Type: |
OS2 SMF |
|
Transmitter: |
4x EML |
Receiver Type: |
APD |
|
TX Power: |
-2.9~4.5dBm |
Receiver Sensitivity: |
<-20.5dBm (with FEC) <-17dBm (without FEC) |
|
Power Consumption: |
5W |
Modulation Format: |
NRZ |
|
DDM: |
Support |
Bit Error Ratio (BER): |
1.00E-12 |
|
Protocols: |
IEEE 802.3ba 100GBASE-ER4 Lite, QSFP28 MSA |
Warranty: |
5 Years |

Every module is quality tested for compatibility in the multi-brand switches environment, which guarantees flawless operations.

Every unit sold undergoes rigorous quality testing, to ensure compatibility in the target switch environment, guaranteeing perfect operation.

Every module is qualified through rigorous procedures and advanced equipment to ensure high-quality and reliable optical devices for you.


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Compatible Cisco
Transceivers type QSFP-100G-ER4L-S (Rx APD)
This module provides consistent performance for long-distance transmission. Link setup is quick, and the signal remains stable during extended operation. Error rates stay low, and optical power levels remain within expected ranges.
Transceivers typeQSFP-100G-ER4L-S (Rx APD)
CompatibleCisco
Helpful
0
We deployed the 100G ER4 for a long single-mode link between two facilities and it's been rock solid. The link came up clean right away and has stayed stable under heavy traffic. A good choice when you need reliable long-distance 100G without overcomplicating the setup.
Transceivers typeQSFP-100G-ER4L-S (Rx APD)
CompatibleCisco
Helpful
0
This 100GBASE-ER4 module delivers very stable performance for long-distance transmission. The link comes up quickly, and the bit error rate stays consistently low during operation. Overall, it’s a dependable choice for metro or backbone links.
Transceivers typeQSFP-100G-ER4L-S (Rx APD)
CompatibleCisco
Helpful
0
Deployed at the aggregation layer of a metropolitan area network, it offers long and stable transmission distances, with no packet loss for extended periods. It's plug-and-play, shipped quickly, and has excellent after-sales service.
Transceivers typeQSFP-100G-ER4L-S (Rx APD)
CompatibleCisco
Helpful
0
I purchased this 100G ER4 module for long-distance backbone connectivity. It delivered excellent stability over more than 30 km without signal drops. The module integrates smoothly with our existing switches, runs cool, and performs reliably. A solid choice for data center interconnects.
Transceivers typeQSFP-100G-ER4L-S (Rx APD)
CompatibleCisco
Helpful
0
The product arrived last week with intact packaging. A pair of 100G SR4 are embedded in the anti-static box. Nice! Very convenient multi-packs.
Transceivers typeQSFP-100G-ER4L-S (Rx APD)
CompatibleCisco
Helpful
0
I have made many purchases at QSFPTEK and Talia has provided me with a lot of help. Each time, the documentation is complete, and after receiving the goods, I also conducted tests. The parameters obtained are consistent with the website description. QSFPTEK's quality control is done very well.
Transceivers typeQSFP-100G-ER4L-S (RX APD)
CompatibleCisco
Helpful
0
Upgrading my network to 100G, the network transition went very smoothly and the rate and reliability of my network has increased dramatically, so if you're looking to upgrade your network to cope with the bandwidth of the future, then upgrade to 100G with QSFPTEK!
Transceivers typeQSFP-100G-ER4L-S (RX APD)
CompatibleCisco
Helpful
0
We ordered 100 QSFP28 ER4 modules, which are very compatible with our several Cisco Nexus-N9K-C92304QC switches. It can be seen that QSFPTEK's module quality control is very good. It can establish a stable connection over a long distance of 40 kilometers, and its performance is also excellent enough to meet our needs for long-distance transmission.
Transceivers typeQSFP-100G-ER4L-S (RX APD)
CompatibleCisco
Helpful
0
The 40KM QSFP28 ER4 module I purchased can reach 40km in real life, something different from our previous purchase on the website is that QSFPTEK's product delivery is very fast and beyond our expectation!
Transceivers typeQSFP-100G-ER4L-S (RX APD)
CompatibleCisco
Helpful
0