10Gtek [4 Pack 10Gb SFP+ LR Singlemode Module 10km, 10GBase-LR LC Transceiver Compatible for Cisco SFP-10G-LR, Meraki, Mikrotik, Ubiquiti UniFi UF-SM-10G, Netgear, Zyxel,Qnap,Synology,D-Link and more

I have been using these now without issues for about 5 months. They work perfectly with Elfcam fibre and GiGaPlus switches. They don't get hot and have worked without issues from installation. Getting close to max expected connection speed. They seem very well built and the connector clip feels sturdy. A little pricey but worth it for the reliability.

Tested in Intel and Mellanox SFP+ PCIe cards with freebsd and debian and work fine.

Iperf measured 9.89 Gb/s both directions, on ancient pcie2 network cards, using a 2013 era PC, sending TCP packets on a 15m OS2 cable. No configuration needed, just swapped them in place of my twinax cable and it instantly worked. Latency 0.2ms (again, this is on ancient hardware by modern standards). The two adapters were supplied in a cool painted tin case which was a nice surprise. Ran them for 24 hours continuously passing data as a test - no failure, flapping or overheating. One of my favourite Amazon purchases ever! Paid full price for these, and the vendor did not ask for this review, I was just really impressed and thought they deserve some random positive feedback. (It was a wonderful experience seeing everything just work, compared to the nightmare I had trying to get realtek and intel 2.5gbe pcie and usb adapters to maintain a link... never mind send data!) PS if it's your first time using fibre remember to read up on laser safety and how to handle the cables and adapters without getting the optics dirty or broken.

I've a pair of budget web managed switches, dual 10Gbps SFP+ cages and 4x 2.5Gpbs ethernets. One upstairs and one downstairs with a 25m 10Gbps duplex multimode fibre run between them. These SR (short reach) optics are perfect for them. I plugged the SFP+ in, and they just worked. Pings over the LAN are sub 1ms and 100% reliable, perfect. Note: Certain devices require registered/vendor specific SFPs, the large enterprise network device vendors, but for Netgear, Asus, D-Link etc these should be fine.

nothing wrong with these. They work in cisco ASRs fine, they dont drop packets!

Works with cisco smb switches just plug it in and connect your fibre cable. No issues at all. A++++

Excellent. Cheap. Great packaging. No complaints here.

Reliable and good product, far chaper than the cisco original and no reason I can see not to use these instead. Quick delivery too

Perfect to use on Ubiquity devices

SR SFP+ optics are pretty much a commodity item, but normally an oddly expensive one. I thought my old employer was getting a great deal for ONE SFP+ module for a little less than the cost here of four. Three of them have worked reliably for me for a couple of months, and I've got a fourth for a spare.

Ormai sono anni che li utilizzo e non ho mai avuto problemi.

Ich setze diese 10Gtek 10GBASE-SR SFP+ Module in mehreren Zyxel-Switches ein und kann sie uneingeschränkt empfehlen. Die Module wurden sofort erkannt, kein Codieren, kein Override und keine Anpassung notwendig. Einstecken, Link kommt hoch, fertig – genau so muss ein SFP+ funktionieren. Im Einsatz mit LC-LC-Multimode-Kabeln (OM3/OM4) laufen die Verbindungen stabil mit voller Bandbreite. Es gibt keine Link-Flaps, keine Paketverluste und keine sporadischen Aussetzer. Auch bei höherer Last bleibt die Verbindung konstant stabil, was gerade bei Storage-Traffic, Backups oder VM-Traffic entscheidend ist. Die Verarbeitung ist sauber, die Module sitzen fest im Cage, nichts wackelt. Die Verriegelung funktioniert einwandfrei und die Steckzyklen zeigen bislang keinerlei Verschleiß. Die Temperaturentwicklung ist unauffällig, die Module werden handwarm, aber bleiben klar im grünen Bereich. Wer teure Markenmodule umgehen will, ohne Kompromisse bei Stabilität oder Kompatibilität einzugehen, ist hier richtig. Für Homelabs, KMU-Infrastruktur oder professionelle Umgebungen mit Zyxel-Hardware eine sehr gute und preislich attraktive Lösung. Ich würde diese Module jederzeit wieder kaufen.

Perfecto tanto en un Switch Zyxel como en el minisforum.