Detailed Specifications
HPE 537963-B21 - 5 m 10 Gb/s SFP+ to SFP+ Direct Attach Copper Cable
Overview
The HPE 537963-B21 is a 5-metre passive twinax direct-attach copper (DAC) cable featuring SFP+ plug-in modules at each end, specifically rated for 10 Gb/s Ethernet links between SFP+ ports. It's designed for short-reach, high-speed links such as server-to-top-of-rack switch or blade chassis interconnects where fibre or active optics are not required. Because it uses a copper twinax construction with SFP+ form factor, it fits standard server optics cages but stays cost-effective and efficient for distances up to 5 m. Ideal use-cases include blade server chassis or high-density rack server environments where latency, power and cost matter.
Key Features
Passive twinax copper cable assembly, SFP+ at both ends, for 10 Gb/s data-rates over 5 metres × cost-effective for short-distance links.
SFP+ to SFP+ form-factor supports insertion into standard server or switch SFP+ cages × no separate breakout modules required.
Compatible with the HPE BladeSystem c-Class and other supported HPE platforms × simplifies deployment and maintains vendor support.
RoHS compliant and industry SFP+ MSA compliant, helping ensure signal integrity and compatibility with multi-vendor setups.
Technical Specifications
| Specification | Detail |
|---|
| Brand | HPE |
| Part Number | 537963-B21 |
| Product Type | Passive Direct-Attach Copper (DAC) Cable - SFP+ to SFP+ |
| Key Spec - Length | 5 metres |
| Key Spec - Data Rate | 10 Gb/s nominal (10GBase-CR) |
| Key Spec - Connector Type | SFP+ plug-in modules at both ends |
| Management | No active electronics (passive link) |
| Power Requirements | <1 W (typical passive cable) |
| Dimensions & Weight | 5 m length; twinax cable thickness per standard design |
| Warranty | Standard HPE spool / accessory warranty (check region) |
