Network Cable BlueOptics R1N34A QSFP28 SC282801L0.5M30 R1N34A-BL BlueLAN

The BlueOptics R1N34A compatible BlueLAN DAC QSFP28 cable delivers high-speed, short-reach connectivity for data center and enterprise network environments. At 0.5 meters length and fitted with QSFP28 connectors, this direct attach cable is engineered for low latency and stable signal transmission between QSFP28 ports. Its compact form factor and robust construction make it suitable for high-density switch-to-switch, switch-to-server, or server-to-server connections where reliable 100GbE links are required.

Advantages

This QSFP28 direct attach cable provides predictable performance with minimal signal loss and reduced latency compared with longer optical runs. The short 0.5 m length minimizes crosstalk and electrical interference in dense rack deployments. Designed for interoperability, the cable offers physical compatibility with standard QSFP28 ports and a sturdy jacket and strain relief for extended mechanical durability in frequent-move or high-vibration environments.

Suitable for

• Short-reach 100GbE links in data centers and server rooms
• High-density switch-to-switch or switch-to-server connections
• Top-of-rack (ToR) cabling and patching within racks
• Environments requiring low latency and stable throughput

Key specifications

• Connector type: QSFP28 to QSFP28
• Length: 0.5 meters
• Supported link speed: 100 Gigabit Ethernet (100GbE)
• Cable type: Direct attach copper (DAC) assembly
• Design focus: Low latency, short-reach connections

How to use

Install the cable by inserting each QSFP28 connector into the corresponding QSFP28 port until the latch engages. Ensure both network devices are powered and that port configurations (speed, lane mapping, and firmware compatibility) support QSFP28 passive DAC operation. Route the cable to avoid tight bends and excessive mechanical stress; keep the length appropriate for the intended top-of-rack or short-reach patching application. No additional transceivers or optical modules are required for operation.

Usage recommendations

Verify compatibility with your switch or server vendor and confirm port settings before deployment. For reliable performance, maintain bend radii above the manufacturer’s minimum and avoid running the cable near high-power electrical sources. Use short DACs like this 0.5 m QSFP28 assembly for intra-rack connections and reserve optical transceivers for longer links.