QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-MA-BO 40 Mbit/s 850 nm

The BlueOptics QSFP-40G-ESR4-MA-BO is a QSFP fiber optic transceiver module designed for 40 Gigabit Ethernet links over multimode fiber. It supports a maximum data transfer rate of 40 Mbit/s at an 850 nm wavelength, uses an MTP/MPO fiber connector and is specified for link distances up to 300 m. The module is lightweight (0.04 kg) and offers a high mean time between failures (MTBF) of 1,000,000 hours, making it suitable for rack-mounted network equipment where MSA-compliant QSFP form factors are required.

Advantages

The module conforms to QSFP MSA dimensions and uses an MPO/MTP interface for parallel optical connections, enabling compact 40 Gigabit installations. With an MTBF of 1,000,000 hours and the use of industry-standard components, the transceiver aims to deliver long operational life and stable optical performance. Compact size and low weight simplify handling and installation in switches, routers and other network devices that accept QSFP modules.

Suitable for

• 40 Gigabit Ethernet uplinks and aggregation links in data centers
• High-speed connections between switches and routers using multimode fiber
• Short-reach optical links in enterprise campus and server rack environments (up to 300 m)
• Environments requiring MTP/MPO connectivity and QSFP form factor interoperability

Key specifications

• Form factor: QSFP (Quad Small Form-factor Pluggable)
• Supported protocol: 40 Gigabit Ethernet
• Maximum data transfer rate: 40 Mbit/s
• Wavelength: 850 nm (TX/RX)
• Fiber type: Multimode fiber support
• Connector type: MTP/MPO
• Maximum link distance: up to 300 m (depending on fiber type and link conditions)
• Weight: 0.04 kg
• Reliability: MTBF approximately 1,000,000 hours

How to use

Install the QSFP transceiver into a compatible QSFP slot on a switch, router or other network device while the device is powered down or following the vendor's hot-plug procedures. Connect an appropriate MTP/MPO multimode fiber patch cord to the transceiver and to the mating connector or patch panel. Ensure that the fiber polarity and ribbon alignment match the link requirements. Verify link status and speed using the host device's management interface and, if available, enable Digital Diagnostics Monitoring (DDM/DOM) in the host to monitor supply voltage, laser bias current, optical transmit/receive power and temperature where supported by the hardware.

Recommendations

Use high-quality multimode fiber (OM3/OM4 as appropriate) and certified MTP/MPO patch cords to achieve the specified maximum distance and signal integrity. Confirm host device compatibility with QSFP-40G-ESR4 modules and enable DDM/DOM support in the network equipment to facilitate remote diagnostics. Follow ESD precautions when handling the transceiver and store spare modules in protective packaging to prevent contamination of optical interfaces.