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Black ProtoArc XK01 foldable Bluetooth keyboard with a number pad

ProtoArc XK01 Full-Size Foldable Bluetooth Keyboard

A 105-key tri-fold Bluetooth keyboard for travelers who want a numeric keypad in their mobile typing kit.

Official documentation ↗Compare this product

Quick verdict

Buy the XK01 if you want a foldable keyboard with a numeric keypad; skip it if you need a bundled stand, case, mouse or wired typing.

Read the analysis and buying limits

Current US price snapshot

$44.99Checked Oct 5, 2026

Amazon US: Black; regular new-item price from ProtoArc, shipped by Amazon. Prime member pricing may be lower. Price may change.

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Analysis and comparisons

Full specifications

Documented facts

Key specifications

Keyboard layout
105-key full-size layout with numeric keypad; tri-fold designProtoArc
Folded size and weight
215.5 × 119.7 × 20.95 mm; 297.72 g (10.5 oz)ProtoArc
Device connection
Bluetooth Low Energy; three device channels. USB-C port and cable are specified for charging.ProtoArcProtoArc
Package contents
XK01 keyboard, USB-C charging cable and user guide; no case, stand, mouse or receiver is listed.ProtoArc
Model, color and Amazon ASIN
ProtoArc XK01; Black; Amazon US ASIN B09TW35H1ZProtoArcPartnerBoost
Sources (4)

Trace the evidence

Sources

Linked sources are the underlying evidence. Fit judgments and explanations marked “Our analysis” are our interpretation.

  1. Official specification

    ProtoArc · ProtoArc XK01 Foldable Keyboard product page ↗

    Accessed

  2. Official specification

    ProtoArc · ProtoArc XK01 FAQ ↗

    Accessed

  3. Official specification

    PartnerBoost · ProtoArc XK01 Black Amazon US destination (B09TW35H1Z) ↗

    Accessed

  4. Official specification

    Amazon · ProtoArc XK01 Full-Size Foldable Bluetooth Keyboard: Amazon US price ↗

    Accessed