| Power adapter | Read the input-voltage range printed on the adapter, such as 100–240 V AC, and confirm the included plug type. | Use the supplied adapter only if its input rating matches the local mains supply. A plug-shape adapter does not convert voltage. | Voltage, frequency, and plug standards differ by country; an incompatible supply can damage equipment or create a safety risk. |
| Power consumption | Check the adapter’s output rating and the computer’s published power requirements. Actual consumption varies with processor, workload, and peripherals. | For an always-on setup, consider ventilation, electricity costs, and whether the power supply can support connected accessories. | A compact system may still draw more power under sustained heavy workloads than during light office use. |
| Video output | Verify the exact port type, supported resolution, refresh rate, and number of displays in the configuration being sold. | Match the computer’s documented output capability with the monitor and cable. Do not assume every USB-C port supports video. | Port shape alone does not guarantee a particular display standard or multi-monitor capability. |
| USB and expansion | Check the number and type of USB ports, their data speeds, and whether memory or storage can be replaced or upgraded. | Ask for the manual or internal layout before purchasing if you need a specific upgrade or peripheral connection. | USB connectors can look alike while offering different data rates, charging functions, or display features. |
| Wired networking | Confirm whether Ethernet is included and check its stated link speed and port type. | For servers, large file transfers, or low-latency use, verify the network speed with the seller rather than relying on a generic product description. | Network performance depends on the computer, router or switch, and cable; the slowest link limits the connection. |
| Wi-Fi and Bluetooth | Check the wireless standards, supported frequency bands, antenna arrangement, and regional availability for the exact model. | Confirm compatibility with local regulations and your router. Wireless performance also depends on distance, walls, and interference. | Supported bands and channels can vary by hardware and region; a standards label does not guarantee a specific real-world speed. |
| Operating system and configuration | Confirm the operating-system edition, activation status, memory capacity, storage capacity, and processor for the exact item shipped. | Save the listing and invoice, and check that the received configuration matches the order before the return period ends. | Listings may offer several configurations, and software licensing or included accessories can differ by seller and destination. |
| Warranty and returns | Get the warranty duration, covered parts, return window, repair location, and responsibility for international shipping in writing. | Check whether the seller or manufacturer provides service in your country and whether local consumer protections apply. | Warranty terms and cross-border return costs vary by seller, destination, and purchase channel. |
| Import costs and compliance | Check estimated delivery time, import duties, taxes, customs handling fees, and any local electrical or wireless requirements. | Ask who acts as importer of record and whether taxes are collected at checkout or charged on delivery. | The final landed cost and delivery process depend on the destination country and shipping terms. |
| Support and documentation | Check for a downloadable manual, driver availability, support contact method, response hours, and clear troubleshooting steps. | Before ordering, test whether support can answer configuration and warranty questions in a language and time zone you can use. | Accessible documentation and responsive support can reduce downtime if setup or repair issues arise. |