Buying Guides
Original explainers to help you understand what to look for — not reviews of products we never touched.
Power & ChargingHow to Choose the Correct Replacement Laptop ChargerVoltage, wattage, connector type and polarity: the four things that must match. Get any of them wrong and the charger either will not work or can damage your laptop.Read guide →Cables & ConnectivityDisplayPort to HDMI: What You Need to Check Before BuyingDirection, resolution, refresh rate and adapter type all matter. A quick checklist to make sure the cable or adapter you buy actually carries a picture.Read guide →Cables & ConnectivityHow to Choose the Right USB Extension CableUSB version, length, power delivery and shielding all affect whether an extension cable will actually work for your setup. Here is what to check before buying.Read guide →