D-Link DEM-QX01Q-SR4 40GBASE-SR4 QSFP Multi Transceiver

The D-Link DEM-QX01Q-SR4 is a high-performance 40GBASE-SR4 QSFP+ optical transceiver designed for ultra-fast data center, enterprise, and carrier-grade network applications. Utilizing Quad Small Form-factor Pluggable Plus (QSFP+) technology, this transceiver supports four transmit and four receive channels, each operating at up to 10.5 Gb/s, enabling a total aggregated bandwidth of 40 Gbps over multi-mode fiber (MMF).

Engineered for high-density switching environments, the DEM-QX01Q-SR4 provides exceptional reliability and scalability for short-range interconnects between switches, routers, and servers. It operates on an 850 nm wavelength and supports transmission distances up to 100 meters on OM3 and 150 meters on OM4 multimode fiber, making it ideal for top-of-rack (ToR), middle-of-row (MoR), and spine-leaf data center architectures.

Key Features

• 40G Ethernet Connectivity
  Delivers blazing 40 Gbps throughput, ensuring superior bandwidth for data-intensive enterprise and cloud applications.

• Quad Channel QSFP+ Interface
  Integrates four transmit and four receive channels, each supporting up to 10.5 Gb/s for seamless data aggregation.

• Digital Diagnostics Monitoring (DDM)
  Real-time monitoring of temperature, transmit/receive optical power, and supply voltage for proactive maintenance.

• Hot-Swappable Design
  Allows module insertion or replacement without powering down the switch, reducing downtime and simplifying upgrades.

• MSA & IEEE Compliant
  Fully conforms to IEEE 802.3ba 40GBASE-SR4 and Multiple Source Agreement (MSA) standards, ensuring multi-vendor compatibility.

• Environmentally Friendly
  Fully RoHS compliant, reducing hazardous substances in accordance with international safety and environmental directives.

Specifications

What’s in the Box

• 1 × D-Link DEM-QX01Q-SR4 40GBASE-SR4 QSFP+ Multi-Mode Transceiver

• Quick Installation / Datasheet Document

Why Choose D-Link DEM-QX01Q-SR4

• Ideal for high-speed data center interconnects and short-reach aggregation links.

• Supports 40G Ethernet for scalable, future-ready infrastructure.

• Simplifies maintenance with hot-swap functionality.

• Built for interoperability across multi-vendor networks.

• Integrated DDM enhances reliability through real-time optical link monitoring.

• Energy-efficient, RoHS-compliant design ensures sustainable operation.