40G QSFP+ QSFP-40G-ER4 40km 1310nm Duplex LC/UPC Module, Cisco

Designed for 40G Ethernet data center and enterprise network environments, the 40G QSFP+ QSFP-40G-ER4 40km 1310nm Duplex LC/UPC Module, Cisco provides 44.6Gbps (4x 11.2Gbps) throughput in a QSFP+ form factor. It operates at 1310nm over SMF through a Duplex LC connector and supports link lengths up to 40km. The module meets OTN OTU3, 40G Ethernet, SATA/SAS3, MSA Compliant and includes digital diagnostic monitoring for live status readout.
Product Highlights
- QSFP+ form factor, 44.6Gbps (4x 11.2Gbps) data rate
- Wavelength: 1310nm
- Connector: Duplex LC
- Reach: up to 40km
- Fiber media: SMF
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Cisco Compatible | QSFP-40G-ER4 |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP+ |
| Max. Data Rate | 44.6Gbps (4x 11.2Gbps) |
| Wavelength | 1310nm |
| Max. Transmission Distance | 40km |
| Connector | Duplex LC |
| Media | SMF |
| Transimitter Type | DFB CWDM |
| Receiver Type | APD |
| TX Power | -2.7~4.5dBm |
| Receiver Sensitivity | <-21.2dBm |
| Power Budget | 18.5dB |
| Receiver Overload | -4.5dBm |
| Max. Power Consumption | ≤3.5W |
| Extinction Ratio | >5.5dB |
| Host FEC | Supported |
| Bit Error Ratio (BER) | 1E-12 |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | OTN OTU3, 40G Ethernet, SATA/SAS3, MSA Compliant |
Applications
In 40G Ethernet data center and enterprise network environments, the 40G QSFP+ QSFP-40G-ER4 40km 1310nm Duplex LC/UPC Module, Cisco delivers 44.6Gbps (4x 11.2Gbps) transmission over SMF with a reach of 40km. The Duplex LC interface and 1310nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. For networks standardized on Cisco hardware, it is a drop-in equivalent of the QSFP-40G-ER4.
Standards and Compatibility
On the compatibility side, this unit is the practical equivalent of the Cisco part QSFP-40G-ER4 and works in Cisco systems out of the box. Standards compliance covers OTN OTU3, 40G Ethernet, SATA/SAS3, MSA Compliant.
Ordering Information
Our part number for this module is QSFP-ER4-40G. When ordering, just let us know the quantity and whether you need the compatibility coding for a particular switch brand; labeling and packaging can also follow your channel requirements.
How We Pack
Transceivers and cables are individually protected against static and dust, then consolidated into sturdy cartons suitable for international courier shipment. For larger orders we shrink-wrap and strap cartons onto pallets. Tell us your warehouse or retail requirements and we will pack accordingly.
OEM and Custom Orders
We have manufactured fiber optic connectivity products since 1995 and run our own production lines in Shenzhen. Beyond the standard catalog we build to order: special cable lengths, custom connector combinations, vendor-specific compatibility coding and private labeling. Send us your requirement and our engineers will quote a practical solution.
Delivery
Goods are normally sent by courier such as DHL, UPS, FedEx, TNT or EMS; air and sea freight are also available on request. Commonly used items are kept in stock for immediate shipment, and out-of-stock items are usually delivered within a few working days. We can also ship on your courier account or hand goods to your appointed forwarder.
Reliability Control
From incoming component inspection to final burn-in, quality is controlled at each step of production. Finished units are verified on real networking equipment in our compatibility lab, and test records are kept per batch so that any field question can be traced back quickly.
