H!Fiber 10Gb Multimode SFP+ LC Module, 10GBase-SR Fiber SFP+ Transceiver for Cisco SFP-10G-SR, Ubiquiti UniFi UF-MM-10G, Mikrotik, Netgear, D-Link,TP-Link and More (MMF,850nm,300m,DDM) 2 Pack

When they work, they work well. I only have 4 so statistically insignificant. YMMV. I bought these to terminate a short multi-mode fiber (OM3) between the upstairs and downstairs 10G Networks of my home. In AZ we get thunderstorms, and a nearby lightning strike once fried a switch with the induced current in a vertically oriented 1GbE cable so since then it has been fiber. My fiber has three OM3 segments: 3m from the downstairs switch to the wall, a keystone pass-through, a 15m OM3 fiber (UV protected) up the side of the house, another keystone pass-through, and a 5m OM3 fiber to my upstairs switch. At both ends the launch (TX) power is -9.7dBm, and the receive power at the far end is -10.5dBm, as measured with a optical power meter. I was happy with just 0.8dB loss given the pass-throughs. Actually, delighted. First pair of these 10GBase-SR SPF+ units would not hold a signal. They would work for 3-5 minutes and then drop signal for 45-60 seconds. Much angst and substitution testing of everything. Then I bought a second pair of 10GBase-SR units and lo! It works, very stable and now 24 hours without a single lost packet (ICMP Ping). Substitution testing of the four I now have shows one was faulty - the fault follows that unit as I move it around. They are cheap (oh, so cheap!) so you get what you pay for and what you get works extremely well when it works. Certainly worth using and I will buy them again as I build-out my fiber to replace worryingly hot 10GBase-T across my home. (I know - unnecessary really, but I do move very large ISOs and video files every day between 10GB capable machines and those seconds do wear on me). Recommended.

I used this to connect a pair of 2.5G switches that also had 10G ports. This is the first time I'm using fiber optics for my home network and I didn't realize how easy this is to use. Well, I'm glad I didn't do this sooner because the various items were at least twice as expensive just a few years ago.

Plug and play, no extra configuration needed.

Replaced defective 10g transceivers that couldn’t even hit gigabit speeds. This pair easily hit 8 gigabit /s when transferring files around as a quick test

Got 2 SFP+ modules and fiber cable as a bundle for less than a single SFP+ module from most places. Connected without issue to a mellanox 10gb card and a Qnap switch. I have a second hand brocade switch on the way, it will be interesting to see if these work with that as well.

As described & quick delivery.

worked great with Dream machine and their 8 port switch.

I have several of these and they are great and the price is good as well. Nothing bad that I could think of to say...

These are cheap but work well ,but they do not work on every switch or router

Super ++++++++++

A mi con un switch Linksys LGS328C-EU no me han funcionado (supongo que algún problema de negociación o incompatibilidad), tengo tambien un switch chino de estos de 10g sfp+ y luego 2.5g en rj45 y tambien problemas (en este modelo chino lo entiendo). La única manera de establecer conexión ha sido punto a punto entre la tarjeta de red del servidor y la del cliente (sin switch intermediario), por ahora me vale como apaño pero vamos, no era la idea de infraestructura que tenía pensado montar. Entiendo que por 20€ la pareja de transceptores es lo que hay... si tu hardware es compatible triunfas, sinó, ajo y agua. La próxima vez para este tipo de experimentos compraré los transceptores "baratos" a china directamente (ya que estos son fabricados en china). Revisión del 31 de Mayo tras hacer mil y una pruebas de combinaciones intercambiando los transceptores con un latiguillo de fibra y cables DAC, al final he conseguido una "combinacion" que funciona y es enchufar directamente el transceptor con cable de fibra al servidor con una tarjeta de red (intel x520 da2) en un extremo y en el otro, el transceptor al switch chino (marca keeplink, de aliexpress) el cual a su vez tiene el otro puerto sfp+ con un cable DAC directamente al otro ordenador que tambien tiene una intel x520, ahora mismo parece que todo se mantiene "estable" por lo que voy a cambiar la review a 5 estrellas

Ho avuto qualche dubbio a proposito della compaatibilità con gli switch Tenda ma, visto il modico prezzo, ho deciso di rischiare. Tutto funziona a meraviglia ed ora ho una dorsale in fibra ottica 10G perfettamente funzionante.

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.