We purchased the 10GBase-T 30m (10gig version) of the rj45 gbic. I started out testing against a 67 foot old cat5e wall run that connects into a patch panel that is then connected into another patch panel which is then connected into one of our 10g fiber ports; this would not register a connection of any type with this gbic but when using an older 1gig version RJ45 gbic a connection was made. I then connected the 10GBase-T 30m into a newer-ran spare line wall drop I have for my desktop, which is a dedicated Cat6 (Amazon ASIN# B00WJOW0PI) line from the wall ran straight to the 10g fiber switch with no other breaks (patching) in the line totaling about 63 foot in distance; my workbench switch connects and reads as a Full Duplex 10g connection on both ends according to the cisco IOS. I then…got curious. I made several single straight run patch cables with no breaks/patches between my workbench switch in the office and the 10g fiber switch in the server room; I ran cables through and across the middle of the office. I used old Cat5e cable we purchased many years ago; Amazon ASIN# B005VQW56U. At distances of 30 feet, 60 feet, and 130 feet a 10gig full duplex connection was successfully made. The moral of this story is: as long as your cable is not super old with multiple patches between point A and point B, this 10GBase-T 30m Copper RJ45 gbic does indeed connect at 10gig over copper. Equipment used to verify connection on both ends: Cisco Catalyst 3560-X with 10g module card C3KX-NM-10G (workbench switch) Cisco Catalyst 3850-24XS (24port 10g Fiber switch)

I have used several of these in ubiquity equipment and they have worked great. No problems.

Bought this as a much less expensive (by 40%) alternative to the highly rated 10Gtek SFP+ to RJ45 10GBase-T adapter. Its been working just fine in the SFP+ port of a D-Link DGS-1510-28X to provide the 10G link to a ReadyNAS 626. Throughput is as good as Im able to test with mostly 1G equipment. Heat generation doesnt seem to be an issue so far, although it is definitely warm to the touch. Packaging is fairly plain, but Id rather pay less than get a fancy box to throw away.

this pair links two fiber devices, long range, flawlessly

I have an Aruba S2500-48P switch that has 4 SFP+ interfaces that are noted as only supporting 1gig copper modules in the manual but on a whim i grabbed this thinking if it doesnt work no big deal, but sure enough right out of the package and loaded it into the powered on switch and it picked it up and saw it without issues or additional tricks like enabling unsupported transceivers etc.. Connected to my google router and full10g works perfect on a cat6 cable! Ordered 3 more now. I havent tested jumbo frames/mtu yet but I will update if any issues. (ArubaS2500-48P-US) #show interface gigabitethernet 0/1/0 transceiver Vendor Name : OEM Vendor Serial Number : CSF101KB5500 Vendor Part Number : SFP-10G-SR Aruba Certified : NO Cable Type : 10GBASE-SR Connector Type : LC Wave Length : 850 nm (ArubaS2500-48P-US) # (ArubaS2500-48P-US) #show interface status | include 0/1/0 GE0/1/0 connected 1 full 10 Gbps 10000Base-X

Initially purchased one of these units, connected between two Netgear switches seamed to work well for couple weeks. was easy to setup on the switch, and see it online. At which point I purchased the second one. after installing and configuring the units worked for several days and then started having connections dropped on multiple occasions. Not giving up yet for the price it would be nice to get these to work. Will retry these after re-configuring my residential network layout.

Works fine on other switches but causes flapping when used in MikroTik switches. Check out the MikroTik S+RJ10 if you need 10G-BaseT in MikroTik hardware.

They work advertised with my Mikrotik Powerbox Pro and also with my Mikrotik Hex S. Paired with a 1Gb fiber cable.

Ordered the 1.25/2.5/5/10GBase-T: 30m variant. Works in my Aruba S2500-24P switch, and negotiates 10gb/s when connected to my desktop PC that also has a 10gb/s network port. Also works in my Intel X520-SR2, after enabling unsupported SFP+ devices. Tested with Truenas Core (FreeBSD), while connected to a 1gb/s RJ45 port of the previously mentioned Aruba S2500. Yes, this particular SFP+ module negotiated down to 1000base-t (1gb/s), and seemed to function fine. The point of this test for me, is that it means I can use an Intel X520 card in my opnsense (freebsd) router, with this SFP+ module to connect to my ISPs Gigapoint 803G ONT (1gb/s RJ-45 port), and a 2nd fiber SFP+ module to feed my aruba switch / LAN.

I havent tested this working, but it definitely doesnt work with an intel x520-sr2 ( 82599ES ) It doesnt work with my TL-SX3008F either, despite claiming to work with TP-link devices. The transceivers that came with my intel x520 worked with the switch fine. I even bought 2 of these and tried both, when I connect them to my intel card, the driver crashes.