Memory Information
	RAM Speed On Board RAM Supported sizes in MB Maximum RAM Virtual Memory On Board VRAM Number of VRAM slots	100ns 2MB* 2, 4, 6 8MB 1GB None None

Notes

The PowerBook 140/145 has 2MB soldered to the motherboard, there is one expansion slot for a memory card. * The 145B has 4mb soldered to the daughterboard and the same expansion slot.