CBO transceiver QSFP-40G-LR 40GBASE-LR QSFP+ 1310nm single-mode fiber

The CBO transceiver QSFP-40G-LR is a 40GBASE-LR QSFP+ fiber optic module that operates at 1310 nm for single-mode fiber connections. Designed for high-speed uplinks and long-reach links, this QSFP+ transceiver provides 40 Gbps transport between switches, routers and aggregation equipment in data centers and enterprise networks. The module fits QSFP+ ports and is intended for single-mode fiber infrastructure where reliable long-distance transmission is required.

Advantages

This QSFP+ transceiver supports 40 Gbps line rate with a 1310 nm wavelength optimized for single-mode fiber, enabling extended reach between network devices. The compact QSFP+ form factor allows for high-density port deployment in rack-mounted switches and aggregation equipment. Compatibility with standard QSFP+ interfaces simplifies replacements and upgrades without major changes to existing hardware. The module is engineered for stable optical performance and predictable latency suitable for core and distribution layers.

Suitable for

• 40G uplinks between switches in data center and campus networks
• Long-distance fiber links over single-mode fiber
• Interconnects between routers and aggregation switches
• High-density QSFP+ port installations

Key specifications

• Data rate: 40 Gbps
• Wavelength: 1310 nm
• Fiber type: single-mode fiber (SMF)
• Form factor: QSFP+
• Application: 40GBASE-LR
• Typical reach: long-reach links over single-mode fiber (vendor-dependent)

How to use

Insert the QSFP-40G-LR module into a compatible QSFP+ port on your switch or router following the equipment manufacturer's hot-plug procedure. Connect appropriate single-mode fiber patch cords to the transceiver's LC duplex interface, observing correct polarity. Verify link status and speed in the host device management interface; the device should negotiate 40 Gbps operation. For safe handling, avoid touching the optical interfaces and use dust caps when the module is not connected.

Usage recommendations

Use high-quality single-mode fiber and LC duplex connectors to achieve specified reach and signal integrity. Confirm compatibility with your network equipment firmware and QSFP+ port specifications before deployment. Maintain clean optical endfaces and follow standard fiber handling procedures to prevent signal loss.