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10Gtek ๐Ÿญ๐Ÿฌ๐—š๐—•๐—ฎ๐˜€๐—ฒ-๐—ง ๐—ฆ๐—™๐—ฃ+ ๐˜๐—ผ ๐—ฅ๐—-๐Ÿฐ๐Ÿฑ ๐—ง๐—ฟ๐—ฎ๐—ป๐˜€๐—ฐ๐—ฒ๐—ถ๐˜ƒ๐—ฒ๐—ฟ, 10Gbe SFP+ Copper Ethernet CAT.6a Module, up to 30-Meter, for Cisco SFP-10G-T-S, Meraki, Fortinet

When HN users recommended it

3 HN users recommended this between 2021 and 2026, in 3 comments.

20072026

Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.

What HN users said

jamesmishra linked amazon.com View on HN

I found it to be surprisingly affordable. If you just want to connect two computers with Thunderbolt three ports, you need:

A switch like this ($143.15): https://www.amazon.com/gp/product/B07LFKGP1L/

two of these adapters ($129.98 total): https://www.amazon.com/gp/product/B01KFBFL16/

and then two of these adapters ($298.00 total): https://www.amazon.com/gp/product/B07K7SMF89/

Works out to $571.13 total. It might not be worth it to just connect two machines, but in my case it was worth it because I was building a 10-machine cluster.

donatj linked amazon.com View on HN
in Ubiquiti SFP Wizard, 3 replies deep

Funnily enough, this 10gtek worked on one of my 3 switches, but I could only establish a gigabit connection. I returned it [1]

These 10gtek fiber modules on the other hand have worked flawlessly so far. [2]

This Mikrotik module would not establish a 10 gb link with my Thunderbolt dock no matter what I tried. Works fine with my servers though so I swapped it out.

I've pretty much resigned myself to just buying the full brand Ubiqitui SFP+ adapters [4] for converting to copper.

I recently purchased [5] to run to my living room, but I have not found the time/energy to do the run.

1. https://www.amazon.com/dp/B01KFBFL16

2. https://www.amazon.com/dp/B08BP4M8LV

3. https://www.amazon.com/dp/B078SNK1MY

4. https://store.ui.com/us/en/category/accessories-modules-fibe...

5. https://www.amazon.com/dp/B0CYC6P6KF

xxpor linked amazon.com View on HN

Unfortunately the blog didn't link to the SFP+ module they're using, but everyone should know there's effectively 2 different generations of 10gbit sfp+ to ethernet modules. The old gen, labeled as 30 meters, draws ~3 W, and gets extremely hot (to the point it'll usually cause link flaps), and the newer gen, usually labeled as 100m or 80m, draws ~1.5 W, and runs much, much cooler.

Example of the new gen: https://www.amazon.com/Wiitek-Transceiver-Compatible-UF-RJ45...

Old gen: https://www.amazon.com/10Gtek-SFP-10G-T-S-Compatible-10GBase...

Typically the old gen uses a Marvell AQR113C, and the new gen uses a Broadcom chip that I forget the number of off hand.

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