AddOn 10GBase-CU SFP+ to SFP+ Direct Attach Cable - HP Compatible

In this review the AddOn 10GBase-CU SFP+ to SFP+ direct attach cable is assessed for small data centers and IT pros who need a short, reliable twinax connection. The bottom line: this passive copper cable delivers HP-compatible 10G performance out of the box and is programmed and serialized to ensure reliable initialization with compatible SFP+ ports. For anyone replacing an HP J9281B or adding short 10G links, the cable's verified compatibility and MSA compliance make it a practical, cost-effective choice.

Key Features

• HP compatible programming: The cable is uniquely serialized and programmed so it initializes like the OEM part and reduces compatibility headaches.
• Passive twinax construction: Operates over copper for short runs up to 1.00m (3.28ft), making it suitable for switch-to-switch and server-to-switch links in racks.
• Tested for data traffic: Each unit is data-traffic and application tested to help ensure reliable 10G connectivity under real loads.
• MSA compliance: Built to comply with Multi-Source Agreement standards so it functions with a broad range of SFP+ ports that follow the same spec.
• Compact packaging and weight: Small package dimensions and a light package weight make it easy to stock and ship for spares or quick replacements.

Who It's For

This cable is aimed at network engineers, systems administrators, and small data center operators who need short 10G copper links between compatible SFP+ ports. It is particularly useful when replacing an HP J9281B with a functionally identical and tested alternative.

Buyers who require longer reaches or active optical solutions should look elsewhere, since this model is a passive copper twinax with a 1.00m maximum reach and is intended for short, rack-level connections rather than campus or long-distance links.

Pros & Cons

Pros

• Functionally identical to the referenced HP part thanks to programming and serialization, improving plug-and-play compatibility.
• MSA compliance and application-level testing reduce the risk of interoperability issues across compliant equipment.
• Simple passive twinax design offers a low-cost, low-power way to run 10G links within a rack.
• Compact packaging and light weight make it convenient for stocking spare parts.

Cons

• Limited to a 1.00m (3.28ft) maximum reach, so it is not suitable for longer runs or cross-room connections.
• The shipped part number may differ from the listed number, which could concern buyers who expect identical labeling.

Specifications

Product Type	Computer Input Device
Compatibility	HP J9281B compatible SFP+ twinax
Maximum Reach	1.00m (3.28ft)
Construction	Passive copper twinax
Compliance	MSA standards; programmed and serialized
Country of Origin	United States
Package Weight	0.18 Lbs

Our Verdict

The AddOn 10GBase-CU SFP+ to SFP+ direct attach cable is a sensible replacement for HP J9281B applications where a short, dependable 10G copper link is required. It is good value for rack-level networking because it is programmed, serialized, and tested for compatibility, though those needing longer runs will require an alternative. Overall it suits IT teams looking for a tested, low-cost twinax option.

Frequently Asked Questions

Is this cable fully compatible with HP SFP+ ports?
Yes, the cable is programmed, uniquely serialized, and tested to initialize and perform like the HP J9281B compatible part.

What is the maximum length supported?
This passive twinax cable supports a maximum reach of 1.00m (3.28ft), intended for short rack connections.

Will the shipped part number match exactly?
The actual part shipped may carry a different part number but will be functionally identical and 100% compatible as described.