Vintage Intel Pentium III 550 MHz Slot 1 Processor – SL3F7Original Intel Pentium III Slot 1 processor with large passive aluminum heatsink assembly.This processor was removed from a working computer years ago and stored since removal. It was working when removed but has not been recently retested, as I no longer have the appropriate system available for testing.Processor markings visible on the unit:* Intel Pentium III
* 550 MHz
* 512 KB L2 Cache
* 100 MHz Front Side Bus
* 2.0V
* Slot 1 / SECC2
* sSpec: SL3F7
* Katmai core
* Costa Rica
* Includes the large attached passive aluminum heatsink assemblyThe original Intel Pentium III cartridge housing and holographic label are intact. The heatsink shows normal dust, oxidation/discoloration and cosmetic wear consistent with an original vintage computer component. Gold edge contacts appear to be in good physical condition.Please examine all photos closely for the exact cosmetic condition and configuration. The item pictured is the actual processor you will receive.Testing status: Working pull when removed years ago; not recently tested.A good period-correct processor for a late-1990s Slot 1 Pentium III restoration, vintage PC build, replacement part, or collection.