Skip the Junk Aisle: Seven Budget Accessories Worth Buying and Three to Leave Behind
Photo: Air fans, CC BY-SA 4.0, via Wikimedia Commons
Every online marketplace has a bargain gadget section, and every bargain gadget section has two kinds of products: the ones that quietly earn their keep for years, and the ones engineered to survive exactly long enough to pass the return window. The difference usually comes down to a few spec details and a willingness to read the listing carefully.
After auditing a shelf's worth of sub-$15 accessories, here is the honest breakdown — seven worth your money, three that deserve your skepticism.
Worth Buying
1. A Powered USB Hub ($12–$18)
An unpowered hub splits one port's electricity across four devices — which is why your external drive keeps disconnecting. A powered hub brings its own wall adapter, delivering full power to every port. Look for one with its own 5V/2.4A (or better) adapter and individual port switches. This single purchase fixes the most common complaint we hear about desktop peripherals.
2. A Cable Tester ($8–$14)
Anyone with a drawer of mystery cables needs this. A simple tester tells you whether a USB or Ethernet cable is fully wired or counterfeit — and counterfeit cables are genuinely dangerous, capable of frying devices by mishandling power delivery. Before blaming your charger, test the cable.
3. A USB Power Meter ($10–$15)
Plug this inline dongle between charger and device, and it displays actual voltage and amperage. It is the only reliable way to know whether that "65W fast charger" deal is real. If a charger claims 65W and the meter shows 10W, you have your answer — and a return label to file.
4. Braided, Certified Data Cables ($8–$12 each)
Not all cables carry data. Many cheap ones are charge-only, which is why your phone refuses to transfer files. Buy cables explicitly labeled USB 2.0 or 3.0 data cables, ideally USB-IF certified or from a brand with a stated warranty (Anker and Ugreen are common reliable picks). Braided jackets resist the fraying that kills cheap cables within months.
5. Magnetic Cable Clips ($7 for a pack)
Unsexy, effective. Adhesive-backed clips keep charging cables anchored to a desk edge, which prevents both the yank-off-the-desk failure mode and the daily hunt for a fallen cord.
6. A Right-Angle Adapter Set ($9)
Angled USB-C and HDMI adapters relieve strain on ports — the single most common physical failure point on modern laptops and phones. If your charging cable plugs in sideways against a wall, a 90-degree adapter can add years to a port's life.
7. A Compact Digital Multimeter ($14–$18)
Slightly over budget, but for anyone diagnosing dead outlets, batteries, or fuses, a basic multimeter replaces guesswork with measurement. It is the tool that pays for itself the first time you avoid a $100 service call for a tripped GFCI outlet.
Leave Behind
1. "Signal Booster" Stickers for Phones
Metal stickers marketed as boosting cell signal have no plausible mechanism for doing so. Antenna physics does not care about an adhesive decal. Pass.
2. Ultra-Cheap "Fast" Wall Chargers from Unknown Brands
Listings promising 100W charging for $6 almost always lie about output, lack proper power-negotiation circuitry, and occasionally lack basic safety certification. If the listing does not show UL, ETL, or FCC marks, do not plug it into your wall.
3. "Radiation Shield" Phone Cases
Cases claiming to block electromagnetic radiation either block nothing or block your signal, forcing the phone to transmit harder and drain the battery faster. There is no scenario where this product helps.
Red Flags in Any Listing
Regardless of the product, three warning signs predict a bad purchase: no named certification (UL, FCC, USB-IF), reviews that all arrived within the same week, and specifications written in superlatives rather than numbers. A legitimate product states 5V/3A; a scam states "super fast charging power!"
Spend the $10 where it counts. The right inexpensive accessory outlasts plenty of premium gear — the wrong one ends up in a drawer, or worse, in a device.