You see it in post #2 in this thread 
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Magic! I missed this. Thanks for the URL.
Does anybody know if these Ubi SFPs might work?
Because these are much cheaper for the moment being 1gbit/s.
It depends if you use multimode or singlemode fiber - in datacenter etc multimode is used indoor and singlemode outdoor. BUT: because singlemode is used for all fiber connections to the home, the singlemode equipment is usually cheaper for non professionals I would say. Eg I have singlemode in my whole home because of that - fiber cables are mostly same price. (I have the same problem as you: existing tubes are too small and full and I could not fit cat6e cables)
Also the SFPs you linked basically use two fiber cables. Especially in singlemode case there are BiDi modules (bi-directional) which operate on two wavelengths (one for each direction) and therefore only use 1 fiber. If you use BiDi you only need half the fibre cables = half the installation cost.
It depend how you install you fiber cables: usually you run cables with connectors only on one side and then splice the connector on other side. You need special equipment to splice or get āfiber splicerā company doing it for you. You can also get special cables who does not need any splicing but they are a bit thicker than normal cables. I did commission a splice company as I had 12 cables to splice at the endā¦
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Yeah, I have got a load of cables from the office still in the packaging that they were throwing out. Some are 5 metres and another is 20m.
Looks to me that these will work with Ubiquiti module I posted above. But I could well be so wrong!
What do you think?
anyone tried one of those: XGS-ONU-25-20NI ?
i should get fiber at home one day (i hope soon xD) and i plan to connect directly my banana to the fiber and go to fiber to the switch.
thx 
The SFPs do have LC connectors and as said, you need two cables (or your duplex cable) to make the link. From the packaging the cable has an LC connector on one side but a different SC connector on the other.
EDIT: I just saw: the media converter has SC plug. So it works! And according to 1G Multi-Mode Optical Module - Ubiquiti Store it runs on same 850 nm wavelength. So should be good.
This duplex cable with those heavy plugs are thin enough? Usually if you can fit two plugs in your cable tube, then you could also fit a CAT 6e cable?
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I had a look, and I can but it is tight from the Banana Pi to PC, but not from the Ubi to Banani Pi. I could prob run Cat6 from Banana Pi to PC, but I prefer fibre from Ubi to Banana Pi, because I want to get used to using fibre.
Question: Am I correct to think this could work between my Ubiquiti ER-X-SFP to the Banana-Pi 4?
- Banana Pi : install a Ubiquiti uacc-om-mm-1g-d-2
- Ubiquiti : Install a Ubiuititi uacc-om-mm-1g-d-2
- Fiber cable : which one do I need? āmulti-mode fiber with a duplex LC UPC connectorā? See URL below to fs.com
Notes: The Ubiquiti module is this one. It is the same as the one on Amazon I posted earlier:
FS.com 20 meter cable: https://www.fs.com/de-en/products/41734.html
But I can get a custom coloured one made in white: https://www.fs.com/de-en/products/12018.html?now_cid=2866
I think you are correct - if you have those Ubiquiti SFPs on both side you need a multimode cable with those LC connectors on both side, so a multi-mode fiber with duplex LC UPC connectors on each side is the correct cable.
Just to note: It is not strictly required to buy a duplex cable - you could also buy two simplex. Obviously to pull a duplex cable through the tube is more hassle, as it is twice as thick and has two connectors next to each other adding even more diameter. And if you pull those patch cables, you also have to get the connectors through the tube.
Also those patch cables are usually not that āpull resistantā, e.g. short term you can pull with 150 N (approx. ā15 kgā) so when you pull the cables, just keep in mind to not put too much force into it 
but I never ripped one apart so farā¦
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I can confirm these both work:
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Hi, You posted a link to a copper sfp. Do you know if any of the fibre sfp they manufacturer work?
can you add your sfp to wiki above?
FS.com recommended these 1g SFP fibre for the aforementioned cable:
Has anybody got any experience with these?
I will order those Ubiquiti SFP fibre modules, and decided to get this cable from FS.com because my ready made patch cables were 2 metres too short.
Do you think this will work with the Ubiquiti SFP module?
66ā patch cable from fs.com: Duplex OM3 Multimode LC/SC/FC/ST/LSH/MU
Fiber Optic Patch Cable Length:20m (66ft) Connector A:LC UPC Connector B:LC UPC Cable Jacket:Riser (OFNR)
Cable Diameter:2.0mm
Polarity:A (Tx) to B (Rx)
I never had problems with fiber SFPs (not on my bpi r4, not on my Mikrotik Switch) - and I ordered really cheap ones from AliExpress, so I guess the FS.com ones are good.
I did order custom cables from FS.com in the past and Iām happy (sometimes it took very long time to shipā¦). And your cable spec looks good. With those duplex cables you can also swap the connectors if you later find out you wanted A(Tx) to A (Rx) - but I think A-to-B is actual standard.
but I think A-to-B is actual standard.
I always worry when somebody writes something along these lines when I am not knowledgable on the subject matter.
Will A-to-B cables work with the Ubi SFP modules I plan to buy? Link below:
I never used duplex (as I use those BiDi, which only seem to exist for single-mode fiber). But this A-to-A or A-to-B is just a description if the cable is crossed (A-to-A is crossed, A-to-B is straight). But as said, you could change the plug, if the cable would be wrong. The plug actually consists of two plugs with a helper-structure which you could just unclip and change: https://www.youtube.com/watch?v=KFRxCfN6JY0
I just googled it: āfiber a-to-a or a-to-bā:
Now this is easy. Thanks for the video
So much easier when compared with a coax cable!
Well I ended up with egg on my face.
I ordered a banana pie from AliExpress. It was meant to come with the heat sink, wifi and an EU power supply.
However, it came without a heatsync module and with the US power supply which cost me ā¬137!
I double checked my order and although it is all truncated on my phone it clearly states EU power supply + heatsink. The rest is far too truncated both in the app, and in Safari, to see.
I feel somewhat Hoodwinked. I take umbridge that there is no way to raise a dispute, or contact the seller even though AliExpress says one can.
This is my first ordering on AliExpress, and my first time with Banana PI.
As for FS.com: No thanks. After sending me a quote for the specific cable and accepting my money they then immediately told me that they were out of stock on the item. They could not ship it. I cancelled my order and they refunded my money again. I shall not use FS.com, and will use Amazon again for my fiber cables as I did before.
Result is that the router and cables that were badly needed for my sonās new computer are not here and he wonāt be able to play because of awful lag.
I have passed beyond the point of beyond disappointment into blind rage.
So, back to getting the BananaPi working:
Question: What is the best heatsink? I saw a few with a fan on the top. Are there any that can do some passive cooking ( e.g no fan needed) or does this equate to lots of heat if I use a 2.5Gb port over copper?
On which os are you? i took some similar one (sfp-10g-aoc1m)_ from aliexpress but i get sfp2: failed to read EEPROM: -ENXIO on openwrt 24.10.1