"Computer accessories" covers everything from a $27 trackball to a $1,800 network storage server, so the right brand depends entirely on what problem you are fixing. We have reviewed four brands in this category, and each one owns a different corner of the desk: ProtoArc for ergonomic keyboards, mice, and chairs; TerraMaster for NAS and external storage; AZIO for design-led mechanical keyboards; and The Portable Monitor for attachable laptop screens. Here is how they rank, and which one to buy from for each job.
Rankings at a glance
| Rank | Brand | Best for | Price range we saw | Warranty |
|---|---|---|---|---|
| 1 | ProtoArc | Ergonomic keyboards, mice, chairs | $20 desk mat to $160 chair | 2 years accessories, 3 years furniture |
| 2 | TerraMaster | NAS and DAS storage | $72 SSD enclosure to $1,800 business NAS | 12 months in the US |
| 3 | AZIO | Retro and custom mechanical keyboards | $10 switch puller to $230 Retro keyboard | Not stated in policy text |
| 4 | The Portable Monitor | Laptop-attached extra screens | Not confirmable from our data | Not published in what we captured |
1. ProtoArc: best overall
ProtoArc earns the top spot because it pairs low prices with the strongest policies and the clearest store information in this group. Most mice are under $40 and most keyboards are under $70. Accessories carry a 2-year warranty, furniture 3 years, and returns within 30 days get a full refund including original shipping. Continental US shipping is free over $19.99, which covers almost the entire store, and there is a toll-free phone line.
The catalog is about 110 products, focused on reducing strain at a desk:
- EK04 split keyboard ($69.99): a curved split board with a separate wireless numpad you can park on either side. It uses low-profile scissor keys, not mechanical switches. ProtoArc notes the palm rest is hard and not removable.
- EM04 trackball ($26.99): a thumb trackball with five DPI steps from 200 to 1600 and three-device pairing. Forward and back buttons don't work on macOS.
- EKM02 combo ($65.99): the wave-shaped EK02 keyboard plus a vertical mouse, only about $11 more than the keyboard alone.
- Flexer chair ($159.99): a compact mesh chair for users roughly 5 ft 1 in to 6 ft 0 in, up to 220 lbs.
Watch for: layout and OS. Several keyboards are Mac-only (the KM90-A says it doesn't work with Windows) and some ship in UK layout. Orders enter fulfillment within about 12 hours and can't be changed after that, and damage claims must be filed within 7 days of delivery.
2. TerraMaster: best for storage
TerraMaster sells network-attached storage (NAS) and direct-attached storage (DAS) with strong hardware for the money. The F2-425 ($239.99) is a 2-bay Intel quad-core NAS with 4GB RAM, a 2.5GbE port, and hardware 4K H.265 decoding for Plex, Emby, and Jellyfin. Step up to the F4-425 Plus (from $479.99) and you get 4 bays, 8GB RAM, and dual 5GbE ports. The D1 SSD Plus ($71.99) is a fanless USB4 enclosure rated up to 40Gbps for one M.2 NVMe drive.
Watch for: the warranty is 12 months in the US (24 in the EU), you pay shipping to send a unit in, and data loss isn't covered. A change-of-mind return window isn't clearly stated. Drives are almost always sold separately, so a 2-bay NAS with two large hard drives can cost double the box price. Free ground shipping applies on orders of $99 or more in the continental US.
3. AZIO: best for keyboards with personality
AZIO, founded in Los Angeles in 2005 per the brand, makes keyboards that double as desk decor. The Retro Classic line uses round, typewriter-style keys, and the Cascade line is a friendly entry into hot-swappable mechanical boards. The Cascade 75% Wireless ($99.99) ships with your choice of four Gateron G Pro switches, and the Cascade 75% Barebone ($79.99) gives you an aluminum top case, hot-swap PCB, foam, and screw-in stabilizers to build on. Themed 110-key PBT keycap sets run $39.99.
Watch for: AZIO ranks third mainly because of weaker policies. Shipping times and costs aren't published, the 30-day return window counts from the purchase date rather than delivery, and items that aren't resealable may be rejected or charged a 25% restocking fee. Shipping costs are not refunded. Several listings also omit wireless type, battery, and Mac support.
4. The Portable Monitor: niche pick, buy with care
The Portable Monitor sells Slide and Flex Pro screens that attach to a laptop, turning one display into three. That is a real use case for consultants, traders, and anyone who hot-desks. But it is the weakest brand here. We couldn't browse its catalog through our product feed, so we can't confirm current prices or models. Returns are only described for unopened products, with no stated window, and you pay return shipping. No warranty terms appeared in the policy text we captured, and support is email-only during European business hours. Our review notes a working coupon code (ALEKSANDRBODNAR). If you buy, confirm your laptop size and that its USB-C port supports video output before you open the box.
How to choose computer accessories
Ergonomic keyboards and mice
- A wave or curved keyboard is the gentlest change from a standard board. A full split keyboard does more to straighten your wrists but takes a week or two to adjust to.
- Vertical mice put your hand in a handshake grip; trackballs keep your arm still entirely. If you have a cramped desk, a trackball wins.
- Check hand size. ProtoArc labels some vertical mice for medium to large hands.
Mechanical keyboards
- Linear switches (like Gateron Red) are smooth and quieter; clicky switches (like Blue) are loud. Tactile switches (like Brown) are in between.
- Hot-swap boards let you change switches without soldering, which is the safest way to experiment.
- A 75% layout drops the number pad. If you live in spreadsheets, that matters.
Storage
- NAS shares files over your network; DAS plugs straight into one computer. Pick NAS for family backups and media servers, DAS for a single editing workstation.
- Two bays let you mirror drives so one failure doesn't lose data. Four bays give room to grow.
- Multi-gig ports (2.5GbE, 5GbE, 10GbE) only help if your router, switch, and computer support them too.
- RAID is not a backup. Keep a second copy somewhere else.
Which brand for which buyer
- Wrist or forearm pain at a desk job: ProtoArc's EKM02 combo or EK04 split board.
- First family NAS for photo backup: TerraMaster F2-425.
- Video editor who needs fast external storage: TerraMaster D1 SSD Plus, if your Mac or PC has a USB4 or Thunderbolt port.
- First custom mechanical keyboard: AZIO Cascade 75%, assembled or barebone.
- Laptop worker who wants three screens on the road: The Portable Monitor, only after confirming port and size compatibility.
Bottom line
ProtoArc is the safest buy in this category, with low prices, a 2-year warranty, and refunds that include original shipping. TerraMaster is the storage specialist with the most hardware per dollar, but a short 12-month US warranty. AZIO makes the most interesting-looking keyboards, with stricter return rules. The Portable Monitor solves a genuine problem, but thin published policies keep it at the bottom of our list.