Solokeys Solo2 Expansion Card

The Solokeys Solo2 Expansion Card is a community-designed 3D-printed expansion card that houses a Solokeys Solo 2 FIDO2 security key inside a Framework expansion card slot¹². Designed by foosinn and published in October 2022, it allows the security key to be stored flush with the laptop chassis while remaining removable for use with other devices¹².

Design

The card is a 3D-printed enclosure (OpenSCAD) that holds a Solokeys Solo 2 (Solo V2) USB security key¹². The key fits completely within the expansion card slot, making it unobtrusive during transport while still being easy to pull out and plug into other devices¹.

Unlike permanent internal mounting, the card allows the key to be removed without tools — it stays in the laptop during travel but can be taken out for authentication on other machines¹.

Specifications

Specification	Details
Device	Solokeys Solo 2 (Solo V2) FIDO2 key12
Type	3D-printed carrier (no electronics)2
Design tool	OpenSCAD2
Source	foosinn/Solo4Framework (GitHub)2
License	CC BY 4.02

Related Projects

Project	Description
YubiKey Expansion Card Adapters	Community adapters for housing YubiKey and Solo 2 keys inside expansion cards

Footnotes

1. Solokeys Solo2 Expansion Card — Framework Community (foosinn, October 2022) ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶

2. foosinn/Solo4Framework — GitHub (CC BY 4.0) ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸