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LaptopSpec

Laptop and netbook specifications, tested numbers and buying advice

24 September 2026

Accessories

Accessories and peripherals

Docks, bags, drives and input devices — with the compatibility figures that decide whether they work with your laptop.

105 pages in this section

Accessories fail on compatibility, not on quality. A dock that advertises two 4K displays drives one of them at half the refresh rate on your machine; a bag sold as a fifteen-inch bag does not close over a fifteen-inch laptop. In both cases the number that predicted it was printed on both products.

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Compatibility first: each piece starts from the figure on the laptop side of the pairing.

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The pairing rule

Every accessory question is a pairing question, and the limiting side is almost always the laptop. The dock cannot deliver more display bandwidth than the port it plugs into carries. The charger cannot deliver more power than the laptop is willing to negotiate. The drive cannot go faster than the lanes behind the socket. Reading the laptop's specification first turns most accessory decisions into arithmetic.