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About the scoresThe scores are calculated mechanically by applying the criteria table at the end of the page to figures published on the manufacturers' official pages and manuals (and on retail or comparison pages where an official figure was not available). We call it the "Spec Score".
Spec Score #2Clamp type, extendable tray
Best if you want to pile a power strip on top too
3.50★★★★☆Spec Score (out of 5)
See on Amazon¥2,999See on Rakuten¥3,599Price as of 2026-09-02 · affiliate link · Opens the shop's site
The maker publishes no spec page we could use, so the figures for this product come from the Amazon product page for this exact listing.
Score Breakdown
Specs
| Mounting | Clamp, no drilling (arrives assembled; no screws) |
|---|---|
| Desktop thickness | 0.1 to 5.5 cm |
| Weight capacity | 20 kg |
| Size | Width 28.5 to 55 cm (extendable); 55 × 12 × 19 cm fully extended |
| Weight | 1.6 kg |
| Material | Carbon steel, lacquered |
🙂 Good points
- 20 kg capacity, the highest of the four
- Extends from 28.5 to 55 cm to match the desk
- Handles desktops 0.1 to 5.5 cm thick, the widest range of the three that list one
🙁 Things to note
- Supports desktops 0.1 to 5.5 cm thick; it cannot be fitted outside that range
- At full length it is 55 cm and 1.6 kg, so check the space
Sources
Amazon [retail page]
Scores are calculated only from specs published on official and retail pages.