I noticed both of these adapters were available in the Amazon Warehouse Deals section recently, so I figured I'd grab them both and do a quick comparison. In terms of performance, they're very similar but keep in mind I only have a gigabit internet connection. My download speed top out at 1080Mbps with both adapters. When doing large file copies across my networked devices, they also perform similarly.
The more interesting tidbits are when I compare the device specs on my Mac Mini M1. The OWC adapter appears to have an older Aquantia firmware installed, while the Sabrent adapter appears to be newer. If I'm not mistaken, firmware version 3.1.106 was released several years. If I had to guess, at least 5 years ago. The Sabrent adapter appears to have the most current firmware version installed. The other noticeable difference is that the OWC adapter shows a PCIe Link Width of x4, while the Sabrent adapter is x2.
Unfortunately I don't have any non-Mac computers with Thunderbolt ports, so I won't be able to test the adapters on anything besides a Mac.
OWC Thunderbolt 10G Ethernet Adapter
Sabrent Thunderbolt 3 (10G) Ethernet Adapter
The more interesting tidbits are when I compare the device specs on my Mac Mini M1. The OWC adapter appears to have an older Aquantia firmware installed, while the Sabrent adapter appears to be newer. If I'm not mistaken, firmware version 3.1.106 was released several years. If I had to guess, at least 5 years ago. The Sabrent adapter appears to have the most current firmware version installed. The other noticeable difference is that the OWC adapter shows a PCIe Link Width of x4, while the Sabrent adapter is x2.
Unfortunately I don't have any non-Mac computers with Thunderbolt ports, so I won't be able to test the adapters on anything besides a Mac.
OWC Thunderbolt 10G Ethernet Adapter
Sabrent Thunderbolt 3 (10G) Ethernet Adapter