mmc

Mobile Module Connector 2 (MMC-2) is Intel's 400 pin processor cartridge used with Pentium II, Celeron and Pentium III mobile processors. It contains CPU, 443BX (Pentium II) Northbridge, off-die L2 cache (early Pentium II only) and voltage regulator. It is the successor of MMC-1, main differences being AGP interface and 100 MHz FSB for the Pentium III. This processor cartridge was widely used on laptops from the late 1990s to early 2000s.
Fastest processors in the MMC-2 form factor are:

Pentium II 400/256
Pentium III 850/256
Celeron 700/128
Unofficially Pentium III 1000/256, this was achieved by removing the chip off a MMC-2 socket card and soldering a Pentium III 1000 processor on the board

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