Wiitek 10Gb SFP+ to RJ45 Modules, 1.25G/2.5G/5G/10GBase-T Ethernet to SFP+ Transceiver Compatible for Cisco SFP-10G-T-X, Ubiquiti, Netgear AXM766, Mikrotik S+RJ10, Unifi (Cat 6a/7 or Better, 30-Meter)

Got this to connect the 10G port on the Bell homehub 4000 to my pfsense box since that cant be bypassed anymore as bell no longer provides a GPON. Was able to connect this to a BCM57810S SFP+ NIC on my pfsense box and have it sync at 10G without any messing around. Has been working perfectly for a few weeks now and no complaints at all. Recommended!!

I have this plugged into a Mikrotik CSS326, negotiates at 2.5BASE-T just fine to connect to an Access Point.While it's not mentioned on the product page, this device fully supports NBASE-T, which means it can also connect at 2.5 and 5 gigabit to devices. The device the transceiver is plugged into will just see "10G", but the RJ45 device will negotiate at whatever its fastest speed is.

Using this in a Broadcom BCM57810S NIC in my pfSense box to a connect via Cat 6 cable to a 2.5Gb port on my Ubiquiti switch and it works perfectly. pfSense "sees" it as a 10Gb device but it negotiates correctly at 2.5Gb with the switch.

TX errors with US-16-XG after only a few hours use.The one I received is defective in less than 24 hours use.

No issues connecting from my 10g lan port on modem to this 10g rj45 sfp+ transceiver (WAN 2 on UDM pro). Negotiates at 10g no problem and I can get my 1.5g isp speed no problem. Recommend if you need one.