Samsung original 1GB 200 pin SO-DIMM DDR-333 PC-2700 64Mx8x16 doubleside (M470L2923DV0-CB3) SODIMM (Electronics)
Although on the relevant eBay page the same company, the memory expansion for the Thinkpad T42 was called compatible, none of the 2 tested laptops could see the RAM. A RAM from another vendor worked. Single piece? Returned with no problems,