1000BASE-LX/LH SFP Optical Transceiver Module Compatible with HPE Aruba J4859D J4859DCM JL746A ProCurve J4859C J4859B J4859A 1310nm 20km DDM Duplex LC SMF

they worked great, no problems!

I bought two of these to go from my router which has ethernet ports on it to my Unifi switch's SFP ports. I did this so I can use it in aggregate mode. I have 1 Gig internet so these being 1.25 Gig work perfectly. The switch detected them and set the port at the correct rate of 1 gig which is the max for my switch. I was able to aggregate the two ports together without any issue. I used a short Cat 6A cable with them. I highly recommend these and give them 5 Stars.

The BAD:--It gets hot. Really hot. I worry about thermal failure--or worse!--in the near term.--I question the source and because of this would never use this in production (maybe OK for home lab). The listing says OPSTRAN, the device says Fibay, and there are SEVERAL other listings with different names and labels.--Would sometimes not play nice with other transceivers at 1310nm. I'd recommending buying and using these transceivers in a pair to be sure of compatibility.The GOOD:--It does what it is supposed to, at gigabit speeds.--Works in more than just Palo Alto (tested in Ubiquiti and StarTech SFP ports).I don't have a long enough piece of fiber to test the full 20km claim at present, but am working on at least replacing my 10km test spool. So this testing was done on 250', 500', and 1km spools.

This transceiver is one of the few 3rd party SFPs for Mikrotik devices that supports auto-negotiation for link speed snd duplex. Great price too! Highly recommend!

I ordered this for a quick convenient way to access a fiber-only (TPLink) switch for troubleshooting. This transceiver does the job. It operates as expected and immediately negotiates a 1Gbps link.This is a nice, cheap alternative to the more expensive 10Gbps adapters. The price seems fair.

I have a TP-Link TL-SG2428P Omada switch with several SFP ports. I've used almost all the RJ-45 ports so I wanted to expand with a few more ports. I picked this SFP adapter up and tried it out. I plugged it into the switch which immediately lit up the status LED that it recognized the adapter. I plugged a computer into the adapter and it all worked as normal. No complaints about that - it just worked as expected.

And it works with my 2.5G switch. My switch has 8 RJ45 ports and one SFP ports. And I didn't want to take up one of the ports as my uplink, so this SFP Transceiver Module fit the bill. Freeing up a RJ45 port. This Transceiver Module seems to be fast and good quality. At this time I don't plan on using fiber, so this adapter SFP to RJ45 work great for me. Ran a quick speed test and it runs at my networks full speed. So, I'm happy with this unit.

Easy to use and configure. Was recognized immediately by the HP switch and able to connect it to my main network via fiber to my main network (using extreme networks).

発熱はほとんどなく安定して使用できています。速度低下もありません。

発熱はほとんどなく安定して使用できています。速度低下も、通信切断もありません。

SFPのポートしか空いてないけど。。。というスイッチで使うために注文しました。結局、PC側でつかうことになったのですが、問題なく2.5Gのネットワーク帯に1Gで混じって使えています。ひとつきほどつかいましたが、特にトラブル無しです。簡単にインストールでき、トラブルなく使えているので、互換品だけどさすがという感じです。これは「OPSTRAN 1000BASE-T SFPモジュール、Juniper QFX-SFP-1GE-T/EX-SFP-1GE-T/SRX-SFP-1GE-T 互換(RJ-45銅製 Cat 5e/6/6a 1.25Gbps 100m)」のレビューです。

アライドのL3（AT-9424T）とハブ（AT-GS950）の間でアライド純正品と通信させました。特に設定などもなく問題なく動作し、速度差もありませんでした。シスコのベンダーロックインをコマンド入力なしに突破できるようになっているのだと思いますがシスコ製品を持っていないのでその点はノーチェックです。ケーブルを差してしまえば見分けがつかないと思いますがコネクタ部が純正とわずかに見た目が異なるのでこだわる人は気になるかもしれません。アライド機では抜け止めも機能しました。ただ、1GbpsのSFPモジュール自体は純正品でも中古なら数百円だと思うので、新品でないと嫌だという人以外は純正の中古との比較になるかなと思います。箱にも本体にもCEやURなどの認証ロゴがなかったのが少し気になりました。

インストールも簡単で互換品とはいえ全く問題なく使えています安定して使えるのでよかった