DAC Cable BlueOptics DAC-0.5M-EX-BL SFP+ Male/Male 0.5m

The BlueOptics DAC-0.5M-EX-BL is a 0.5 m direct attach copper (DAC) cable with SFP+ male connectors on both ends designed for short‑reach, high‑speed links in racks and between adjacent racks. It implements a passive twinax copper design suitable for 10GBase‑CR applications and is compatible with equipment that supports standard SFP+ passive DAC connections. The cable is intended for low‑latency, low‑power connections between servers, switches and storage devices where short, reliable point‑to‑point links are required.

Advantages

This DAC cable provides a fixed 0.5 m copper link with SFP+ male/male connectivity, offering predictable electrical performance for 10 Gbps applications without additional transceivers. The passive twinax construction keeps power consumption and latency low while simplifying installation and reducing component count. Built to MSA‑compliant mechanical and electrical dimensions, the cable uses high‑quality materials and components to support long service life and stable signal integrity in short‑distance data center environments.

Suitable for

• Short‑reach connections between rack‑mounted switches and servers
• Direct server‑to‑storage or switch‑to‑switch links within the same rack or adjacent racks
• 10 Gbps Ethernet, FCoE and other protocols supported over SFP+ passive DAC twinax

Key specifications

• Connector type: SFP+ male to SFP+ male
• Length: 0.5 meter
• Cable type: passive twinax copper (DAC)
• Supported data rate: up to 10 Gbps (10GBase‑CR)
• Wire gauge: 30 AWG twinax conductor
• MSA‑compliant electrical and mechanical characteristics for SFP+ interfaces

How to use

Install the BlueOptics DAC‑0.5M‑EX‑BL by inserting each SFP+ connector into the SFP+ ports of the corresponding devices until the retention latch engages. Ensure both ends are seated firmly and that connected devices support passive SFP+ DAC cables. No external power or transceivers are required; protocol support (Ethernet, FCoE, etc.) must be enabled and configured on the connected hardware according to the device manufacturer’s instructions.

Recommendations

Use this 0.5 m passive DAC for short, fixed links inside racks or between adjacent racks to minimize latency and power draw. Avoid sharp bends and excessive mechanical strain on the cable and keep the cable path clear of heat sources. Verify device compatibility with passive SFP+ twinax DACs before deployment and follow rack‑level grounding and cable management practices to maintain signal integrity and accessibility.