Review on High-Performance 10G SFP+ DAC Cable - Blue Twinax SFP Cable for Ubiquiti UniFi Devices, Ideal for Short-range Connections by Robert Chandrasekar

Update: The original DAC I received turned out to be defective. The seller got in touch and quickly resolved the issue. The new cable works as expected. 5 stars for a company that stands behind their product!————————— Original review below: This 2m DAC cable represents "OEM" as a vendor. Legal 10GTek is displayed as "10GTek". I would have given up if it wasn't for the terrible network performance. This cable delivers 60 Mbps (out of 10,000 ratings) with iperf. I tested this result with Speedtest and Fast and got the same result. Replacing the DAC cables with the official 10GTek cable gives an expected speed of 984 Mbps symmetric to the Internet (AT&T GigaPower) and 9925 Mbps between switches using iperf. I hope this review helps you make an unbiased, informed purchasing decision.