10GBase-SR

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.

can confirm these work with pfsense in broad com and emulex cars in both workstation and firewall applications. Worked fine in my hp devices as well. H!Fiber is a lab standard for me now.

As described & quick delivery.

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.

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.

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

worked great with Dream machine and their 8 port switch.

Plug and play, no extra configuration needed.

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

Utilisé entre un switch zyxel et une Freebox Ultra avec un câble om3 de 40m, aucun soucis, le test de débit local indique 1.10GBps soit 8.8Gbps

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.