Chargers
GaN wall chargers, USB-C power delivery and fast-charging standards
Newest: One charger for everything
Independent buying references
Specifications and measurements, without the marketing.
Buying guides for chargers, power banks, audio, private storage and AI glasses. Figures are attributed to their source, measurements are labelled as measurements, and no product can pay for coverage. Use the search box above, or start from a category below.
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All articles →Power Banks
Capacity, output and airline rules for portable batteries
Newest: Power bank buying guide
Headphones
Wireless audio, codecs and noise cancelling
Buying overview, articles in preparation.
NAS & Private Cloud
Network storage, drives and self-hosted backup
Newest: What a NAS actually does
AI Glasses
Camera, audio, translation and display smart glasses
Newest: Display AR glasses compared
Latest guides
Browse all 22 articles →
What a NAS Actually Does: File Access, Media, Backup and the Limits of Each
File access, media serving, scheduled backup and download duty are four different jobs. Which of them a household gets real value from decides whether the box earns its place.
What a NAS Needs From the Home Network: 2.5GbE, WAN Access and Switching
Storage is rarely the bottleneck. Gigabit Ethernet, switch placement, WAN access methods and the reason not to run everything on one box.
DIY vs. Prebuilt NAS: Total Cost, Effort and Reliability Compared
A self-built server wins on price per bay and freedom, and loses on support, power draw and the hours it costs. Where the two lines cross, and who should pick which.
NAS Buying Guide: Bays, Drives, RAID and Running Cost Before You Buy
Bay count, CMR against SMR drives, RAID levels and the electricity bill are the four decisions that outlast the specification sheet. Worked through in order.
How this library is built
Specifications are attributed to their source, and standards are linked to the body that defines them. Measured values are labelled as measurements. Where one product is compared against another, the article states what was measured, over what period and with what limitation. Manufacturer claims are never presented as independent results.
Start here
New to the subject? The clearest entry point is the explainer on what actually changes when silicon is replaced by gallium nitride in a charger — and the one thing that does not.