OWC Thunderbolt 3 10G Ethernet Adapter, for High-Speed Network Connections, RJ45 Port Supports 10Gb/s, 5Gb/s, 2.5Gb/s, 1Gb/s and 100Mb/s Base-T, Compatible with Thunderbolt 3 or 4 Ports

Works at 10g as advertised. No problem with it after months of usage and never dropped. Nice.

Works very well and is "plug and play" foolproof. For some reason my system took about a minute to identify and get the drivers for it but all is well.I like the rubber casing around the metal of the NIC itself.

I purchased the OWC Thunderbolt 3 10G Ethernet Adapter for use with my iMac M1 running macOS Sequoia 15.3, expecting a reliable high-speed network connection. Instead, this adapter has been nothing but frustrating and unreliable. It randomly disconnects, especially during large file transfers, sometimes even corrupting files.After extensive troubleshooting, including resetting network settings, replacing cables, upgrading macOS, and following every step OWC suggested, the issue still persists. OWC support has acknowledged no known compatibility issues, yet they have no firmware fix or solution. Their only recommendation? Return it and try another unit, as if that’s a real fix. This suggests they are aware of the issue but unwilling to properly address it.If you're planning to use this adapter in 10G mode on an M1 iMac running macOS Sequoia 15.3, be warned—OWC knows about the problem but has no resolution. Unless you're willing to deal with frequent disconnections and weak customer support, avoid this product. I expected better from a brand like OWC, but this has been a major disappointment.

Ever single 10gbe to thunderbolt adapter seems to work, less than desirable. This one is the best of the worst! If the cable is moved slightly, sometimes, it looses connection. Really don’t get it but out of all the ones I’ve tried, this one looses connection the LEAST.

OMG, the Internet flies on my computer. Now, it really allows my MacBook Pro to shine.

I decided to upgrade my home network and bought this adapter to use on an M1 Mac Mini. The product itself works great, gives me fast transfers and barely even gets warm no matter how much I use it.However, I ordered and paid for a NEW product and "fullfilled by Amazon" sent me one that appeared to have been previously opened/used. When I opened the product box, this adapter sat on top of the plastic bag that it should have been inside of. Either OWC's quality control missed this or I got a used product.Since I never had a problem with the device, I let the return window close and just continued using it. At this point, I have had the adapter for several months and have been very happy with its performance.Hopefully, this review was helpful to you.

Only 10G adapter I could find to work with my Mac. It works great.

My MacBook recognized this instantly and I am getting great speeds! Here is a local test done connected through a 10Gb switch:laptop:Downloads me$ ./iperf3 -c 10.2.220.104Connecting to host 10.2.220.104, port 5201[ 6] local 10.2.93.106 port 64591 connected to 10.2.220.104 port 5201[ ID] Interval Transfer Bandwidth[ 6] 0.00-1.00 sec 1.05 GBytes 9.03 Gbits/sec[ 6] 1.00-2.00 sec 1.07 GBytes 9.20 Gbits/sec[ 6] 2.00-3.00 sec 1.07 GBytes 9.15 Gbits/sec[ 6] 3.00-4.00 sec 1.01 GBytes 8.64 Gbits/sec[ 6] 4.00-5.00 sec 1015 MBytes 8.51 Gbits/sec[ 6] 5.00-6.00 sec 1.02 GBytes 8.76 Gbits/sec[ 6] 6.00-7.00 sec 1018 MBytes 8.54 Gbits/sec[ 6] 7.00-8.00 sec 1.01 GBytes 8.65 Gbits/sec[ 6] 8.00-9.00 sec 1024 MBytes 8.59 Gbits/sec[ 6] 9.00-10.00 sec 995 MBytes 8.35 Gbits/sec- - - - - - - - - - - - - - - - - - - - - - - - -[ ID] Interval Transfer Bandwidth[ 6] 0.00-10.00 sec 10.2 GBytes 8.74 Gbits/sec sender[ 6] 0.00-10.00 sec 10.2 GBytes 8.74 Gbits/sec receiveriperf Done.This adapter gets very hot. I have been thinking about sitting my coffee cup on it to keep it warm, but that would probably void my warranty...