Kingston 512MB 1Rx8 PC2-5300F DDR2-667MHz ECC Fully Buffered Server RAM KVR667D2S8F5
Flawless, never used. These are coming out of plastic containers. I need the plastics for other RAM. These are never used and will be shipped in bubble wrap or sleeves.
They've been sitting in a spare RAM drawer for 20 years, its time.

This is a "vintage" piece of enterprise hardware that was standard in the mid-to-late 2000s.

Description

• Manufacturer: Kingston

• Capacity: 512MB

• Rank: 1Rx8 (Single Rank)

• Speed & Type: PC2-5300F-555-11-A0 (DDR2-667MHz)

• Model Number: KVR667D2S8F5/512

• ECC Type: Fully Buffered (FB-DIMM)

Key Details About This Stick

This is a Fully Buffered ECC (FB-DIMM) module, which is a very specific type of server RAM from the DDR2 era.

• Generation: DDR2. This is three generations behind current technology.

• Speed: 667 MHz (PC2-5300F). The "F" at the end of the speed rating confirms it is "Fully Buffered".

• Architecture: FB-DIMMs were unique because they included an Advanced Memory Buffer (AMB) chip on the stick (the large silver or black chip in the center) to help manage high-speed data across many memory slots.