copper SFP+ Passive DAC that comes in either

This is a copper SFP+ Passive DAC that comes in either an active cable or passive twin-ax cable assembly and connects directly into an SFP+ housing.The active twin-ax cable has active electronic components in the SFP+ housing to improve the signal quality; the passive twin-ax cable is just a straight “wire” and contain no active components.
Our TOptics twinax cables are guaranteed compatible and carry the Simple Technology no quibble money back guarantee and lifetime warranty.From what I know, the biggest thing that has held back adoption of 10GbaseT has been power usage. Also I think other industry organizations had given up waiting for 10GbaseT to materialize. Also cost was somewhat of a factor too, I recall at least with Extreme their 24-port 10GbaseT switch was about $10k more than their SFP+ switch (without any SFP+ adapters or cables), so it was priced similarly to an optical switch that was fairly fully populated with modules, making entry level pricing if you only needed say 10 ports initially quite a bit higher.SFP+ Passive DAC cables are suitable for very short distances and offer a highly cost-effective way to connect within racks and across adjacent racks. SFP+ cables offers a low cost SFP+ solution. SFP+ directly attached twinax cable assemblies supports 10 Gigabit Ethernet, 10 Fibre Channel, and other industry standards.