Will the Cmd / Alt (L) key fit my MX Keys?

Yes, if it is a full-size MX Keys (MX Keys, MX Keys S and MX Keys for Mac) in the AZERTY (FR) layout: the Cmd / Alt (L) key has exactly this shape there. Not on the MX Keys Mini, where Ctrl and both Cmd / Alt keys are narrower (1.125 units).

Is the hinge included with the Cmd / Alt (L) key?

Yes, the X-shaped hinge comes with the Cmd / Alt (L) key — it is often the part that broke. Only the rubber dome is not supplied: it stays in place on the keyboard under the Cmd / Alt (L) key, and domes are sold in packs among our spare parts.

My Cmd / Alt (L) key feels loose or uneven after fitting — what should I check?

Take the Cmd / Alt (L) cap off again and check that the hinge is clipped onto all its anchor points; if a metal wire sits under the key, make sure it is engaged in its clips. Then press the centre of the Cmd / Alt (L) key before its ends.

Cmd / Alt (L) Replacement key AZERTY (FR) Black Logitech MX Keys

Cmd / Alt (L) replacement key AZERTY (FR) Black for Logitech MX Keys

Name: Cmd / Alt (L) AZERTY (FR) Black - Logitech MX Keys replacement key
Brand: Logitech
SKU: azerty-cmd-alt-l
Price: 10.99 EUR
Availability: InStock

Cmd / Alt (L)Replacement key for keyboard Logitech MX Keys

€10.99Genuine part, excellent condition

Hinge includedThe white plastic clip that holds the key: shipped with it, ready to snap on.

Colour: Black

Black (Cmd / Alt (L) + hinge)MX Keys (PC) · €10.99WhiteUnavailable

In stock

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Very easy to replace

2 minutes, no need to take the keyboard apart. No skills required.

Lift the old key by one corner, straight up, with a fingernail or a spudger.
Clip the supplied hinge onto its hooks.
Set the new key on top and press the centre until it clicks.

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See how it's done

Video “Logitech MX Keys how to remove keys” by Tin, published on YouTube under the standard YouTube licence: all rights reserved by its author. Keyspares is neither its author nor affiliated with Tin. The player only loads when you click; YouTube may then set cookies (Google privacy policy).

Recommended tools for some keys

Optional but handy: the spudger lifts the key without scratching or bending the mechanism, and the thin blade of the flat screwdriver unhooks the plastic hinge and helps clip it back in.

Specifications

Category: Modifiers
Keyboard layout: AZERTY (FR)
Compatibility: MX Keys (PC)
Color: Black
Size: 1.25U

Compatible with these Logitech keyboards

On these keyboards, this genuine MX Keys key takes the place of the official one: same scissor mechanism and mounting, with a legend and finish that may differ slightly.

Where is the Alt key and what does it do?

On a full-size Logitech MX Keys, the Alt key sits on the bottom row, between the Windows key and the space bar. In Windows it forms Alt + Tab (switch window) or Alt + F4 (close the active window). On a Mac it becomes Command (⌘), hence its dual legend “cmd | alt”.

About the Cmd / Alt (L) replacement key

A replacement Cmd / Alt (L) key for the Logitech MX Keys, supplied with its hinge: a key used all day long, replaced on its own rather than with a new keyboard. We take the Cmd / Alt (L) key from dismantled keyboards: it is a genuine, pre-owned Logitech cap, sold without the dome.

Compatibility

This Cmd / Alt (L) keycap fits the full-size MX Keys (MX Keys, MX Keys S and MX Keys for Mac) in the AZERTY (FR) layout. On the MX Keys Mini, Ctrl and both Cmd / Alt keys are only 1.125 units wide, so this cap does not fit there.

The Cmd / Alt (L) key: position, size and wear

The Cmd / Alt (L) key is 1.25 units wide, a unit being the width of a letter key. It is often held by the left thumb, on its inner edge, for an Alt + Tab. On a cap this wide, an off-centre press loads only one side of the scissor hinge: that side is the one that splits, and the Cmd / Alt (L) key then leans towards it or catches.

How to install it

Lift the old Cmd / Alt (L) cap by a corner, remove the damaged hinge and clip in the one supplied. Lay the Cmd / Alt (L) key flat, then press the centre and each end: on a key wider than a letter, one side left unseated makes it lean.

Step-by-step guide: swapping an MX Keys key and its hinge

Cmd / Alt (L) key — questions

Where is the Alt key and what does it do?: On a full-size Logitech MX Keys, the Alt key sits on the bottom row, between the Windows key and the space bar. In Windows it forms Alt + Tab (switch window) or Alt + F4 (close the active window). On a Mac it becomes Command (⌘), hence its dual legend “cmd | alt”.
Will the Cmd / Alt (L) key fit my MX Keys?: Yes, if it is a full-size MX Keys (MX Keys, MX Keys S and MX Keys for Mac) in the AZERTY (FR) layout: the Cmd / Alt (L) key has exactly this shape there. Not on the MX Keys Mini, where Ctrl and both Cmd / Alt keys are narrower (1.125 units).
Is the hinge included with the Cmd / Alt (L) key?: Yes, the X-shaped hinge comes with the Cmd / Alt (L) key — it is often the part that broke. Only the rubber dome is not supplied: it stays in place on the keyboard under the Cmd / Alt (L) key, and domes are sold in packs among our spare parts.
My Cmd / Alt (L) key feels loose or uneven after fitting — what should I check?: Take the Cmd / Alt (L) cap off again and check that the hinge is clipped onto all its anchor points; if a metal wire sits under the key, make sure it is engaged in its clips. Then press the centre of the Cmd / Alt (L) key before its ends.