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2026-08-30 23:54:44 +02:00
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content/en/2.general/3.hardware/2.network.md
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---
title: Network
description: Overview of networking hardware for homelabs — switches, NICs, cables, and how to connect your servers efficiently.
description: Overview of networking hardware for homelabs. Switches, NICs, cables, and how to connect your servers efficiently.
---
:ellipsis{left=0px width=40rem top=10rem blur=140px zIndex=60}
# Network
::note
🎯 __Objectives:__
Understand the basics of networking hardware
::
![hardware](/img/global/hardware-networking.svg)
@@ -89,7 +82,6 @@ On the other hand, if your device is limited to 100 Mb/s, a simple `CAT 5` cable
Nowadays, in new buildings, it is standard practice to install `CAT 6A` cables inside walls. This way, wall ports are ready to support 10 Gb/s over 100 meters.
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### Optical Cables
@@ -109,13 +101,11 @@ For local networks, the recommended standard is a **multimode OM3 fiber with LC
__Warning:__ Make sure to use transceivers that are compatible with your devices (routers, switches, or other hardware). There is no universal standard yet, and manufacturers usually specify which brands are supported.
::
---
### DAC Cables
These are copper cables with integrated `transceivers`. They allow two SFP/SFP+ ports to communicate over short distances without using fragile fiber or RJ45 adapters. However, they consume more energy due to natural copper loss, which is non-negligible.
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### SFP+ Transceivers
@@ -127,5 +117,5 @@ These let you connect different types of cables to your SFP/SFP+ ports. Variants
::warning
RJ45 transceivers consume a lot of energy due to copper signal loss and can generate significant heat. Low-power models (under 2W) exist and are generally rated for longer cables (e.g., 80m instead of 30m). Surprisingly, these are preferred over short-distance models because they generate less heat and consume less energy—making them more compatible with sensitive devices. Using the wrong type can cause network degradation or even outages.
__Warning:__ RJ45 transceivers consume a lot of energy due to copper signal loss and can generate significant heat. Low-power models (under 2W) exist and are generally rated for longer cables (e.g., 80m instead of 30m). Surprisingly, these are preferred over short-distance models because they generate less heat and consume less energy—making them more compatible with sensitive devices. Using the wrong type can cause network degradation or even outages.
::