10/100/1000Base-T SFP RJ45 Module - Auto-Negotiation Copper Mini-Gbic Transceiver Compatible for Cisco GLC-T(10/100/1000M)/ SFP-GE-T(10/100/1000M), Mikrotik S-RJ01

Installed two of these in my Edge switch. They worked instantly. 1gbps detected speeds as expected. Moving to the SFP connections on my switch then freed up a further 3 gig ports. Can’t complain.

I needed this for working around Ubiquiti's incompetence. Turns out that their UDM Pro, despite having "pro" in its name, sometimes it behaves like a toy networking wise as the developers haven't really finished writing the firmware and the tech support is too simple to understand a detailed bug report, including how to reproduce a bug.The problem with two internet connections with one media converter and one modem is that it needs two RJ45 cables that need plugging into one router. But, Ubiquiti in their infinite wisdom, implemented only one RJ45 WAN and two SFP+ ports that may serve as WAN/LAN. So, lacking enough inputs, I've configured one of the ports in the switch as WAN2 (port 8. A feature that's supported, yet broken in unfunny ways, so much so that I suspected that my main ISP is doing something dodgy until I saw the same behaviour for my backup connection.Cue this adapter to enable WAN2 on port 10 or 11 on UDM Pro. Problem worked around.TL:DR it does what it says on the tin. Runs at the expected gigabit. Runs a bit hot, but so far it has not caused any trouble. It actually comes in a metal storage case which is quite a nice touch. Works with SFP or SFP+ ports.

Like speed of shipping , packaging and fact items work.

I Bought this for MY UDM Pro as I was not getting full gigabit internet over PPoE. When connected to the 2.5GB and connecting via PPoE I was not getting full bandwidth so I took a punt and bought this to connect via the SPF port instead. Good news is I now get full gigabit down and nearly full gigabit up.

I've bought quite a few 10Gtek SFP modules over the years and have had great success with all of them. Generally when I'm in the market for new SFP modules I tend to look at 10Gtek's offerings first.This was a 4 pack of the gigabit 1000Base-SX modules which I have used to link a Cisco SG350-10 to a Mikrotik CRS308-1G-8S+IN with 2 ports on each device using 802.3ad LACP and they work perfectly in both devices.I've been using these modules for nearly a year with no issues at all. The same can also be said for the 10Gtek 10Gbase-SR 10 Gigabit SFP+ modules I'm also using several of.10Gtek tends to be much cheaper than the main manufacturers offerings, i.e. Cisco, but also seem to perform just as well and are highly compatible with most devices.

Rated as 3 stars because although this works great in a Cisco SG350 at 1g, it doesn’t auto negotiate down to 10m, despite being advertised as a 10/100/1000Base-T model.This caused me an issue because I have a couple of SuperMicro server boards and they run in shared IPMI network port mode. This runs the port at 1g for both IPMI and normal traffic whilst the box is on, but if you use IMPI to shut the box down, the port switches to 10m. This SFP doesn’t like that, so disconnects and effectively disconnects IPMI, and to recover you need to physically power the server back on, which defeats the object of having IPMI!!It wasn’t just SuperMicro - I have a APC UPS monitoring card (AP9217) which also connects at 10/100 that doesn’t work with this SFP either.So in summary, great for 1g but I couldn’t get 10/100 to work on my Cisco SG350.

Works with my UniFi US-8-150, just slotted in and powered up and appears in the GUI. I did initially try to connect a slower 100mbps IoT device and could not work out why it did not work then realised I got the slightly cheaper 1gb not the 1000/100/10 version but that’s not a problem. Pleased I not have extra ports.

TPlink recommended a type for their own switches a TPLink duplex single core GBIC massive install and guess what they didn’t work even after threatening to sue them they admitted they wouldn’t workI fitted these single mode “WOW” 1GB network suddenly came aliveI only now buy and specify these only