ProtoArc XK01 review: a full-size foldable keyboard for travel

Verdict: The ProtoArc XK01 is for travelers who still want a full 105-key layout and number pad once they reach a desk. Its tri-fold body saves bag space, but the official package list does not include a stand, case or mouse, and its typing connection is Bluetooth. This source-based review covers the Black model, Amazon US ASIN B09TW35H1Z; Protein Picks has not tested it. ProtoArc product details Amazon US destination

Pros

• A 105-key layout keeps the number pad available for spreadsheet and data entry.
• Tri-folds to about 8.5 × 4.7 × 0.8 inches and weighs about 10.5 ounces.
• Pairs with up to three devices over Bluetooth.

Cons

• The number pad does not make this a small typing surface when unfolded.
• ProtoArc lists only the keyboard, USB-C charging cable and user guide in the box.
• There is no documented wired-typing mode or backlight for this listing.

Does folding make the number pad practical to travel with?

For someone who uses number keys throughout the day, the XK01 preserves a familiar desktop-style layout while folding down to a thick paperback-sized footprint. ProtoArc lists 105 keys, including the number pad, and gives folded dimensions of 8.48 × 4.71 × 0.82 inches at 10.5 ounces. That is easier to pack than a regular full-size keyboard, though you still need a stable surface and enough width to use it comfortably. It folds for carrying; it does not shrink the desk space required while typing. ProtoArc specifications

What do Bluetooth and charging mean in daily use?

ProtoArc documents three Bluetooth channels, so you can pair a phone, tablet and computer, then switch among them. The USB-C port and cable are for charging; the official materials list Bluetooth as the keyboard connection. Do not buy it expecting USB-C to serve as a wired keyboard connection or as a receiver slot. ProtoArc product details ProtoArc XK01 FAQ

The FAQ says the XK01 charges with a USB-A-to-USB-C cable and recommends a 5V source. If your travel kit is all USB-C-to-USB-C cables and chargers, check compatibility before leaving home. ProtoArc XK01 FAQ

What comes with the Black XK01?

ProtoArc’s package list names the XK01 keyboard, a USB-C charging cable and a user guide. It does not list a travel case, phone holder, mouse or USB receiver. That distinction matters if you saw a larger travel setup pictured elsewhere: this review covers the standalone XK01 package mapped to ASIN B09TW35H1Z. Plan to bring your own way to prop up a phone or tablet and protect the keyboard in a bag. ProtoArc package details

Who should buy it, and who should skip it?

Buy the XK01 if a number pad is essential and you want to fold the keyboard into a carry-on or backpack between work sessions. Skip it if you need a compact typing footprint, adjustable viewing stand, bundled mouse, protective case or wired fallback. If moving a cursor without a separate mouse matters more than numeric entry, see the ProtoArc XK01 TP review; for a smaller two-fold keyboard, see the ProtoArc XK04 review.

This analysis covers the Black ProtoArc XK01, ASIN B09TW35H1Z. Retail listings can change; verify the selected Black XK01, seller, and current terms at the retailer before buying. Amazon US destination