Summary: Not for the average, or even slightly more advanced user. I bought these for my home lab...overkill for sure. I first bought 1 of these and 1 of the dual port model, to verify that I would see an improvement with my equipment - why bother going to 10G if the systems you have can't leverage it?
Summary: Simply AMAZING!!! I'm backing up between two PCs with RAID arrays with spindle drives. I'm averaging about 500MB/s on average. Large files - 1GB transfer 600MB/s. Lager transfer at 900GB/s. Tiny files are still slow - about 30MB/s.
Great card - sustaining 800k/sec across network for backups
Amazon Customer, Amazon
20 November 2014
Summary: I installed this in a Dell Precision to decrease the time needed to run backups using vRanger with a Dell R720XD and a MD3220 with 24 x 1TB drives. Before I installed this card the backups exceeded 24 hours, after installing the full backups complete in 6 hours.