In a quest to convert my home from 100Mbps to gigabit, I encountered this device. Cables from the wall are coming in, Ethernet cable going out. As far as I understand, this device converts the interface for the signal, not the signal itself.

Photo: enter image description here

  • Connection: My computer is connected to it, and from it straight to the router.
  • Router: Netgear VEGN2610 supports gigabit
  • Motherboard: Gigabyte h97-hd3 supports gigabit

In windows, my speed & duplex settings are "1.0 Gbps Full Duplex", however, the connection speed says: "100 Mbps"


  • What is the name of this device? I want to research online, but I don't know what device I am researching
  • Can it be the bottleneck? If not, why even though all of my network is 1 gigabit, it still uses 100Mbps?
  • It looks kinda like a Patch Panel (though I've never seen one that looks quite like that.) It could be a bottleneck if it was made for Cat5 and not at least Cat5e. – Chris Powell Jan 18 '17 at 20:37
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    The problem is most likely one of two things: 1) Not all four pairs are connected all the way through. 100Mbps Ethernet only requires two, GigE requires all four. 2) The mappings of wire pins to signal pairs is not correct. 100Mbps Ethernet is much more tolerant of poor noise immunity than GigE is. – David Schwartz Jan 18 '17 at 20:47
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    Whoever did that knew nothing about Ethernet networking. The shielding on the cables is mutilated, and had too much removed (and it's also not wired to either of the two accepted standards). That hack job is more than likely why you can't get full speed across your lines. – Ƭᴇcʜιᴇ007 Jan 18 '17 at 20:48
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    They are. Look more closely, particularly at the pin numbers. – David Schwartz Jan 18 '17 at 21:06
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    @Amit "If I change this wiring to standard A for example, will I need to change on both ends?" Yup. Judging by this, I'd be highly suspect of the condition of the punch-downs on the other end as well. – Ƭᴇcʜιᴇ007 Jan 18 '17 at 21:06

It's a patch panel. Assuming it's Cat5e rated, you should have no problem running GigE over it.

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  • It does seem like one! followup: how can I check if me cables are Cat5e or Cat5? – Amit Jan 18 '17 at 20:45
  • @Amit - it'll often be labelled as such. If it's Cat5 it'll say so, or Cat5e. Looks like Cat5 to me. But even so, most cat5 cable and patch panels meet the cat5e standard but are just not certified as such. – Matt H Jan 18 '17 at 20:50
  • It won't bottleneck your connection to 100mbit.. that's usually a wiring issue. – Matt H Jan 18 '17 at 20:51
  • @MattH I can't find a label, unfortunately. If I get a confirmed cat5e patch panel, will it be compatible in case it is cat 5? (I can not change the wires in the walls) – Amit Jan 18 '17 at 21:00
  • Yes it's compatible. It'd be interesting to see how the other ends of the cable are wired. – Matt H Jan 18 '17 at 21:06

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