zCLOUD-M3K is available for purchase here. (Including an M3K cable)
If you already have an M2/3K then you can buy the modkit here. (No cable included)
Weight: 15 grams (excluding cable)
Material: PLA-CF
Internals: Zaunkoenig M3K/M2K
Dimensions: 58.5 x 70 x 20.25 (mm)