QSFP Transceiver BlueOptics EB57-BO 40GBASE‑SR4 MPO/MTP Multimode 4×850nm 150m 0–70°C

The QSFP Transceiver BlueOptics EB57-BO 40GBASE‑SR4 is a short-reach optical module designed for 40 Gbps Ethernet links in data center and high-density aggregation environments. It uses multimode fiber with an MPO/MTP interface and four 850 nm optical lanes to deliver up to 150 meters of reach over suitable multimode fiber. The module is intended for use in switch uplinks, server interconnects and patching within racks and between adjacent racks, and is specified to operate in ambient temperatures from 0 to 70°C.

Advantages

The transceiver supports 40GBASE-SR4 signaling using four parallel 850 nm lanes, providing a compact QSFP form factor that consolidates multiple channels into a single port. The MPO/MTP connector simplifies multi‑fiber cabling and reduces trunk complexity compared with multiple LC connections. Its multimode design and 150 m reach make it suitable for typical data center topologies where short-distance, high-bandwidth links are required. Rated operating temperature ensures compatibility with standard equipment racks and cooled server rooms.

Suitable for

• 40 Gbps switch uplinks within data centers
• Server-to-switch high-bandwidth interconnects over multimode fiber
• Top-of-rack to aggregation switch connections up to 150 m
• High-density installations using MPO/MTP trunk cabling

When it may not be suitable

This QSFP transceiver is intended for short-reach multimode fiber links and is not suitable for long-reach or single-mode applications. It will not support distances beyond the specified 150 m over multimode fiber, and it does not provide compatibility with single-fiber single-mode optics or CWDM/DWDM systems.

Key specifications

• Data rate: 40 Gbps (40GBASE-SR4)
• Fiber type: Multimode fiber (MMF)
• Wavelength: 4 × 850 nm lanes
• Connector: MPO/MTP multi-fiber connector
• Maximum reach: Up to 150 meters on appropriate multimode fiber
• Form factor: QSFP (Quad Small Form-factor Pluggable)
• Operating temperature range: 0 to 70 °C

How to use

Insert the QSFP transceiver into a compatible QSFP port on the switch or NIC until it seats firmly and the latch engages. Use an MPO/MTP multi-fiber patch or trunk cable to connect to the corresponding MPO/MTP port on the remote device or patch panel. Ensure that the deployed multimode fiber type and modal bandwidth (for example OM3 or OM4) support the required 150 m reach at 40GBASE‑SR4. Observe proper handling procedures for optical transceivers: avoid touching the fiber endfaces, keep dust caps on when not connected, and verify link status through the network device interface after installation.

What to consider before purchase

• Verify that your switches or network devices support QSFP form-factor transceivers and 40GBASE‑SR4 signaling.
• Confirm the multimode fiber grade (OM3/OM4) and channel length to ensure the 150 m reach is adequate.
• Check MPO/MTP cabling infrastructure and polarity for compatibility with parallel optics wiring.
• Ensure ambient operating temperatures align with the 0–70°C range of the module.

Usage recommendations

Use OM4 multimode fiber for best margin when approaching the 150 m limit, maintain clean connectors and proper polarity in MPO/MTP trunks, and verify link status and error counters after deployment to confirm stable 40G operation.