H!Fiber 1.25G Multimode SFP LC Module, 1000Base-SX SFP Transceiver, MMF 850nm, 550m, DDM, for Ubiquiti UniFi UF-MM-1G, Mikrotik S-85DLC05D, Netgear AGM731F, Intel and More, 2 Pack

Nothing to configure. Just popped them in and connected the two with fiber. Done.

Worked great to connect Unifi Dream Machine Pro to USW-24.

These SFPs work great. The speed is good, and they are definitely hot-swappable. I was pleased to be able to expand the capacity of my Ubiquiti EdgeSwitch ES-8-150W switch with these.One item to be aware of is that if you want to use IPv6 with these SFPs on a ES-8-150W, you will need to log in to the switch CLI and issue the following command in order to allow prevent IGMP from blocking IPv6 router advertisements:You'll need to be in "config" mode and issue the command: set mldThis is documented on the Ubiquiti help forums in a post from 2018 with title "IGMP Snooping blocks IPv6 router advertisements".Even if IPv6 is working properly on the existing RJ45 ports, you will still need to "set mld" for these SFPs to be able to obtain an IPv6 address.These SFPs are very nicely made and work very well. You just need to know the above command on EdgeSwitch devices. This is a caveat of the EdgeSwitch and not the SFPs.

I purchased a pair of these ASF-GE-T SFP transceivers back in No 2019 and they worked as expected (Netgear GC110P and GC110 cloud switches)--no problems. I gave this hardware no other thought (other than appreciation at not having to pay ridiculous pricing for the Netgear branded transceiver doing the same thing).However, upon purchasing additional transceivers earlier this year, to use in other ports on the same hardware, I have been unable to get the new transceivers to work properly. This is my second purchase--I repurchased the ASF-GE-T in August 2020 (returned) and tried these ASF-GE-T1 (Oct 2020)--neither model worked in my Netgear switch. However, the original set purchased last year continue to work fine.When these new SFP's are plugged into the chassis then an active endpoint (PC) connection plugged into the transceiver, the transceivers behaves as if there is a switching loop. In other words, switch logs indicate the transceiver bounces thru various STP states (blocking, forwarding, blocking, forwarding, on and on...)--even though the connection is an endpoint (PC) not another switch.I will be returning this latest set back to Amazon for a refund. Unfortunately, my disappointment cannot also be refunded. :-(

These work exactly as intended and were plug and play. I am using these in a Unifi Dream Machine Pro to connect a cellular 5g router to the SFP WAN port so I can use the dual WAN functions in this router. No issues. The packaging was a small, and refreshingly compact. Great buy!

Works great with my Ubiquiti USW-PRO-48-POE. LAG with 2 ports to my server for a 20G connection. works great a without any issues or failures. definitely beat the cost of an OEM.

While these work, I've had problems with running clients off of these.. seems they work well and proper when feeding another switch via it's SFP. So at that point, get the fiber version and get the fiber optic cables. For short runs like home use, the multimode duplex are more economical. the simplex versions are supposed to be better, but that only matters for real long runs , like thousands of feet.

Using these to connect a switch on my Mikrotik router to a Mikrotik switched saved the use of an ethernet port on each

I've read a few people say they worked but auto negotiation didn't. I connected these between my CRS326 and 328, went into SFP and told them to advertise 10G and the link came straight up. Very happy and will buy again when I start pushing 10G to the servers.

Ive been using these 10gig SFP+ modules in Mikrotik CRS 305 & 309 switches and they have worked perfectly fine connecting to each other.

This works well with MikroTik routers and switches.

Excellent

SFP+ Kompatibilität ist immer so ein Problem, im schlimmsten Fall erlaubt ein Netzwerkausrüster nur seine eignen. Umso erfreulicher dass diese auf Anhieb in Switch (Mikrotik) und NIC (Mellanox) funktionierten. Leider brachen dann irgendwann die Datenraten ein oder Verbindungen waren nicht mehr möglich, im Switch wurden viele "Rx MAC Errors" und mehrere hundert "Rx FCS Errors" pro Sekunde angezeigt und iperf zeigte sehr viele Retransmits mit wenigen Mbits Durchsatz und Congestion windows im einstelligen KByte-Bereich. Nach viel testen und anschaffen weiterer Hardware wie eine Intel X520-DA1 NIC, weitere Transceiver und Kabel kann ich das Problem reproduzieren.Kurz: Im Switch laufen die gut, in den NICs nicht. Zuerst laufen die gut, nach einem Reboot oder ifdown/ifup bricht die Datenrate erst ein und manchmal schon nach dem 2. Mal ist die Leitung so gut wie tot. Parallel dazu geht die Fehlerrate hoch. Irgendwie scheinen die die Synchronisation zu verlieren. Einziger Workaround ist mal kurz die Verbindung zu kappen.