nobadbuys
Verified Jul 16 2026
Dossier Nº ES-26-581
Query: Ethernet switch · Anyone · Under $80
9 independent sources
12 switches compared · STH best-balanced pick
Confidence 89%

The answer — one pick, priced

Get the

TP‑Link TL‑SG105S‑M2

$60
typical price on Amazon · in stock · volatile class, check live price
$20 under your budget

Five 2.5GbE ports for roughly what an unmanaged gigabit switch cost a few years ago — ServeTheHome's best-balanced cheap 2.5GbE pick, fanless, ~1W idle, lifetime warranty.

TP-Link TL-SG105S-M2
TP-Link TL-SG105S-M25 × 2.5GbE · ~1W IDLE

Fit ledger — need → measured evidence

UNDER $80
$60 typical — $20 of headroom, and roughly what a plain unmanaged gigabit switch cost a few years ago.
DESK OR AV RACK
Five 2.5GbE ports, ~25 Gbps capacity — right-sized to hang off a router and feed a NAS and a couple of multi-gig PCs.
EXISTING CABLING
2.5GbE runs at full speed on Cat5e for typical home runs under ~45m — no rewiring, no Cat6 upgrade.
ALWAYS ON
~1W idle and fanless — silent, and cheap to leave powered around the clock.
REAL WARRANTY
TP-Link's limited lifetime warranty and a real RMA channel — unlike the ~$49 AliExpress-sourced no-names that test just as fast.

  The catch — co-equal billing, always

Five ports means four devices. One goes to the router, and you are left with four — while the eight-port TRENDnet TEG-S380 sits at ~$75, still under your cap. Buy this only if you know exactly what is plugging in and it will not grow.

Dealbreaker? Runner-up №1 has eight 2.5GbE ports for $15 more ↓

  Every product has a catch. Verdicts that hide it are how bad buys happen.

Don't buy this if…

  • you want a Wi-Fi router or mesh system, not a wired switchwifi 7 routers dossier →
  • you need a rack-mounted 24/48-port enterprise or SMB switch, PoE camera-plant sizing, or L3 routing at scale
  • you are asking how to wire a home network, run Ethernet, or pick cable categories rather than choosing a switch
  • you specifically want 10GbE everywhere (multiple 10GBASE-T copper ports), not 2.5GbE with 10G uplinks

Wrong product for you is still a bad buy. These are the cases where we'd send you somewhere else.

Runners-up — if your needs differ

Adjacent verdicts — other needs, same method

Different budget, different household, different job — each of these is already researched, priced and verified. Take the one that matches your need.

Traps — this verdict avoids

Why the TP-Link TL-SG105S-M2 is right for you

It avoids every trap below — and for anyone, under $80, it is the pick because it delivers:

Under $80 Desk or AV rack Existing cabling Always on Real warranty
Trap 01

Wired ports, not Wi-Fi

A switch adds wired ports only — it does not extend or improve Wi-Fi coverage. If the goal is a better signal upstairs, you need an access point, mesh node, or extender. A switch will not add a single bar.

Trap 02

The brand premium

Near-identical 8-port 2.5GbE switches sell anywhere from ~$49 to ~$150 — you are paying for the warranty channel and idle draw (~1W vs ~5W), not for speed. Prices in this class are unusually volatile; check the live price the day you buy.

Trap 03

Unmanaged is unmanageable

Unmanaged switches have no VLANs, QoS, or link aggregation — perfect for a flat home network, wrong the moment you want to fence IoT cameras or a guest SSID onto their own segment. Get that wrong and you re-buy at ~$133.

Provenance — 9 sources, dated

Winners are picked from the full research dossier at knowledgelib.io. Prices, stock and listings are re-verified monthly.

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TP-Link TL-SG105S-M2$60 · See it on Amazon →