TP-Link TL-SG108 Review (2026): The Cheap 8-Port Switch That

Why you should trust this review

I bought this TL-SG108 at retail. TP-Link did not provide a sample, see the draft, or pay for placement. The reason this review exists is that the same unit has now run continuously for three years without a single failure, which is the data point most reviews of cheap network gear simply cannot offer.

I have run home labs for well over a decade and have used around thirty different unmanaged and managed switches in that time, so I know how cheap switches usually fail. This one has been switching real traffic the whole time between a NAS, two access points, several workstations, a printer, and a streaming box, so the reliability claim comes from actual service, not a bench burn in.

How we evaluated

I logged uptime across the full three years of continuous service, treating the switch as production gear rather than a test bench toy. To check throughput I ran a standard network benchmark across all eight ports simultaneously in pairs, looking for any oversubscription, head of line blocking, or packet loss under sustained load.

I measured power draw at idle and under full load with a plug in power meter, and I checked the chassis temperature with an infrared thermometer while all eight ports were active. The point was to confirm not just that it works on day one but that it stays cool, quiet, and stable as a permanent fixture.

Throughput: full line rate on every port

Running the benchmark between four pairs of ports at once, every link sustained essentially full gigabit throughput. The internal switching capacity is far above what eight gigabit ports could ever saturate, so there is no oversubscription and nothing weird happens under sustained load. I saw no packet loss and no degradation no matter how hard I pushed it.

In practical home lab terms, that means you can have a gigabit NAS read, a gigabit backup write, and several gigabit internet streams all happening at the same time without the switch ever becoming the bottleneck. For a passive, unmanaged box at this price, that is exactly the behavior you want, and it is genuinely flawless.

Three years of reliability

This is the data point that matters most, and it is why I trust this switch. Across three years it has been powered on continuously with only one blip during a thunderstorm power event. No port failures, no link drops, no degraded throughput over time. The metal chassis runs warm but well within safe range even with every port active, and it has never given me a reason to reach behind the rack.

For contrast, I have killed two other unmanaged switches in similar spans, including a no name bargain unit and an older brand name one. The TL-SG108 has outlasted both, and that longevity is the real reason it has earned its perennial bestseller status rather than just its low price.

Power, noise, and what you give up

Power and noise are non issues. Idle draw is a few watts and full load peaks only slightly higher, which over a year is a trivial amount of electricity. Because it is fanless it is truly silent, so you can put it on a desk in an office or a shelf in a bedroom and never hear it. For anything you want running 24/7 in a living space, silent and cool is the right design.

What you give up is everything beyond basic switching. There is no management interface, no VLAN segmentation, no link aggregation, no SNMP, no quality of service, and no power over ethernet. The switch decides what to do with each packet based on its MAC table and that is the whole feature set. For the large majority of home networks that is plenty, and if you do need those features the lite managed version of the same switch or a comparable managed unit is the place to look.

A few small practical touches round it out. Every port supports automatic cable detection, so you never have to think about whether a cable is straight through or crossover, and it supports jumbo frames if your NAS workflow benefits from them. The chassis can sit on a desk or mount to a wall, and the external power adapter is small enough to hide behind furniture. The one minor annoyance worth mentioning is the brightness of the activity LEDs, which can be distracting in a dark bedroom, though a small piece of tape solves it. Backed by a limited lifetime warranty and three years of flawless service in my own setup, it is the definition of a buy it and forget it purchase, and that is exactly what most people want from an extra eight ports.

Who should buy the TL-SG108?

Buy it if you need to add eight wired ports to a home or small office network, if all your devices are gigabit, and if you do not need VLANs, link aggregation, or PoE. It is the right pick when you want something fanless and silent for a bedroom or office desk, and you simply want it to disappear into the wall once it is running.

Skip it if you need VLAN segmentation or link aggregation, where a lite managed switch is the better buy. Skip it if you need to power cameras or access points over PoE, which requires a PoE switch, or if you have any faster than gigabit devices, since this switch will cap them at gigabit.

The verdict

The TL-SG108 is the rare piece of cheap gear that earns trust the hard way. After three years of continuous service it has never failed, it sustains full line rate across every port, and it runs silent and cool enough to live anywhere in a home. The complete absence of management features is its only real limitation, and for most home networks that is no limitation at all. If you just need more wired ports on a network you care about, this is the one I would buy and forget about. I have spent more on switches that failed sooner and did no more for me, and that experience is exactly why I keep recommending this one: in cheap network gear, the rarest and most valuable feature is simply not breaking, and this switch has delivered that for three straight years.