1.25G SFP 1000Base-SX, 850nm MMF, up to 550 Meters, for Cisco GLC-SX-MMD/SFP-GE-S, Meraki MA-SFP-1GB-SX, Fortinet, Ubiquiti UniFi UF-MM-1G, Mikrotik S-85DLC05D, TP-Link TL-SM311LM and More, Pack of 2

Product worked perfectly with Cisco Catalyst 2960X.

Device worked perfect with no issues.

Bought them for our WiFi network, and it worked as intended. Didnt have any issues since then.

These worked great with my Unifi system and in a low cost Chinese brand PoE switch I purchased. I would purchase again.

The ASF85-24-X2-Cisco2 model worked perfectly in both my EnGenius Neutron EWS1200-52T and Amcrest AGPS9E8P-AT-96 (a.k.a. BV-Tech POE-SW802-DIN) switches. Now that I have changed from copper to fiber for the switch-to-switch connection, I have better electrical isolation between the PoE switch running my exterior IP cameras and my main switch in case of power spikes. As a bonus, Ive had no heat issues with these SFPs like others have mentioned. They run nice and cool for me and Ive had 0 dropped packets.

These work pretty great. I wish my switches supported 10Gb SFP+ ports, but the switches I have will only support the 1.25Gbps SFP switches. These are not only a great price, they work flawlessly with cisco switches. I have a catalyst 3950 (an older model from 2k6) and I have a SG-220 26p switch for small/medium business and they will xfer the full bandwitdth at low latency to one another.

I used two of these devices to connect an Unifi USW-24-PoE switch to UDM-Pro, also using a [0.5 Meter (1.6FT) Multimode Duplex Fiber Optic Cable (62.5/125) - LC to LC - Orange, Brand: Ultra Spec Cables]. The UDM-Pro can handle 10 GB or 1 GB, but the USW-24-PoE gen. 1 only has a 1GB port. The 10 GB devices will not work in the USW, and the same device needs to be at each end of the optic cable to work. Using this setup freed up two additional RJ45 ports at my Network rack. Also, since my internet is about 920 GB download, I dont need the 10GB devices anyhow, as only internet traffic is coming to a from the UDM (UNVR-4 does Protect video, not the UDM). It is all working great with this setup, nothing special had to be done, plug and play...

I purchased this for use on a Merak MX 85 gateway. The transceiver works fine on the LAN SFP ports but will not link past 10MB on the WAN port. I even tried manually setting it in the local management page. It seems to work fine on the LAN ports and also on a Meraki MS120 switch though.

Works as advertised. Used in a Cisco SG350-28. Plug and play.

I have edgerouter4 and gs110tp, i bought two of those in the hope of connecting the router to the switch via sfp. Upon connection, nothing happened, no green light, nothing. I left them in their boxes thinking that i didnt do enough research to ensure compatability. As a last resort, i decided to contact 10gtek and ask for advice. I got a response within few hours stating some troubleshooting steps trying to pin down the problem. The first suggestion was to try another fiber cable which i didnt have and i had to buy it, once arrived, i connected it and the green lights came up on both the router and the switch, so far so good! Thanks a lot Freya from 10gtek for the quick response and the helpful suggestions. Soon i will buy two more to extend my network.