BlueOptics QSFP-40G-ESR4-SG-BO Compatible Synology QSFP Transceiver, 40GBASE-ESR4, MPO/MTP, 850nm, 300m OM3 / 400m OM4

The BlueOptics QSFP-40G-ESR4-SG-BO is a high-performance, cost-effective QSFP transceiver designed for 40 Gigabit Ethernet networks. It is fully compatible with Synology QSFP-40G-ESR4 ports, offering seamless integration into existing infrastructure. This transceiver supports 40GBASE-ESR4 standard over multimode fiber with MPO/MTP-12 connectors, delivering reliable connectivity for data centers and enterprise networks.

Advantages

Optimized for short-reach multimode fiber applications, this transceiver provides up to 400 meters reach on OM4 fiber and 300 meters on OM3 fiber. It features low power consumption (<1.5W typical), hot-pluggable design, and Digital Diagnostic Monitoring (DDM) for real-time performance monitoring. The VCSEL laser technology ensures stable optical output and long operational life.

Suitable for

• Data center interconnects
• Enterprise network aggregation
• High-performance computing clusters
• Synology NAS systems with QSFP+ ports

Key specifications

• Form Factor: QSFP+
• Data Rate: 40 Gbps
• Protocol: 40GBASE-ESR4
• Connector: MPO/MTP-12 (female)
• Fiber Type: Multimode (OM3/OM4)
• Wavelength: 850 nm
• Max Distance: 300 m (OM3), 400 m (OM4)
• Power Consumption: <1.5W
• Operating Temperature: 0°C to 70°C
• DDM/DOM: Yes
• Hot-Pluggable: Yes
• RoHS Compliant: Yes

Recommendations

For optimal performance, use with OM4 multimode fiber patch cables and ensure clean MPO connectors. This transceiver is ideal for upgrading your Synology network to 40G connectivity without replacing existing fiber infrastructure.