



Ubiquiti QSFP28 Optical Module
Ubiquiti 100G LR4 Single-Mode Optical Module (UACC-OM-QSFP28-LR4)
The Ubiquiti 100G LR4 Single-Mode Optical Module is a QSFP28 transceiver for 100 Gbps links of up to 10 km over single-mode fiber. It uses a duplex LC UPC connector and Ubiquiti lists it as compatible with QSFP28 and QSFP+ interfaces, for high-capacity uplinks between core switches and buildings. This listing is the single unit, UACC-OM-QSFP28-LR4. Fiber cable is not included.
Quick Glance
Key Features
100 Gbps over single-mode fiber up to 10 km
Ubiquiti rates the module for a 100 Gbps data rate and a supported cable distance of 10 km (6.2 mi) over single-mode fiber. It uses the QSFP28 form factor and Ubiquiti lists it as compatible with QSFP28 and QSFP+ interfaces.
LR4 optics on a duplex LC UPC connector
The module has a duplex LC UPC connector, so a link uses a single-mode fiber pair. Ubiquiti lists four TX and RX wavelengths for this LR4 module: 1295 / 1300 / 1304 / 1309 nm. Fiber cable is not included and is bought separately.
4 W maximum, 0 to 70° C operation
Maximum power consumption is 4 W per Ubiquiti's specification, and the ambient operating temperature range is 0 to 70° C (32 to 158° F). It is a Class 1 laser product to IEC/EN 60825-1:2014 and is sold as a single unit.
Detailed Specifications
Specifications are from Ubiquiti's technical specifications page and official store listing for the 100G LR4 Single-Mode Optical Module. Ubiquiti does not publish a weight for this module.
Need-to-Know
- Fiber cable is not included. The module needs single-mode fiber terminated with a duplex LC UPC connector.
- Ubiquiti lists the module as compatible with QSFP28 and QSFP+ interfaces but states only the 100 Gbps data rate; it does not state the link speed when fitted in a QSFP+ port.
- This is a single unit (UACC-OM-QSFP28-LR4). Ubiquiti publishes no weight for the module.
- Class 1 laser product: do not look into the ends of the fiber optic cable or the module while converters are powered.
Best For / Customer Benefits
Customer Benefits
- 100 Gbps over a single duplex single-mode fiber pair.
- Supported cable distance of up to 10 km per Ubiquiti's specification.
- Standard duplex LC UPC connector for common single-mode patch leads.
- Supplied with a VAT invoice for business purchasing.
Best For
Frequently Asked Questions
Ubiquiti rates the 100G LR4 Single-Mode Optical Module for a 100 Gbps data rate and a supported cable distance of 10 km (6.2 mi) over single-mode fiber.
Ubiquiti lists the module as compatible with QSFP28 and QSFP+ interfaces. It is a QSFP28 form-factor transceiver. Ubiquiti does not state the data rate it runs at in a QSFP+ port, so check with us before planning a QSFP+ link.
It has a duplex LC UPC connector and works with single-mode fiber. Ubiquiti lists TX and RX wavelengths of 1295 / 1300 / 1304 / 1309 nm for this LR4 module.
No. Ubiquiti states that fiber cable is not included. You need single-mode fiber with a duplex LC UPC connector at each end of the link.
Planning a 100G single-mode link?
Tell us the distance and the switches at each end, and we will help you confirm this QSFP28 module and the fiber you need.

