Vintage original Intel Pentium II Slot 1 processor with factory-style passive heatsink.Specifications: Intel Pentium II 266 MHz; sSpec SL2HE; Intel part number 80522PX266512EC; Klamath core; 66 MHz front-side bus; 512 KB L2 cache; Slot 1 / SECC cartridge; MMX technology; marked Ireland.This processor was removed from a working computer many years ago and has been stored since. It has not been recently tested, so it is being sold based on its condition when removed rather than as freshly tested hardware.Includes the processor/cartridge and attached large passive heatsink exactly as pictured. Original Intel hologram remains present. Shows normal dust, storage wear and cosmetic marks consistent with age. Please examine the photos carefully for exact condition.