DDR4 UDIMM Unbuffered Memory

Key takeaways

• 1,036 listings match this collection right now.
• Unbuffered modules have no register or buffer chip between the DRAM and the memory controller, which limits the rank count a channel can carry compared with registered memory.
• Single-socket Xeon E platforms and workstation-class boards are the primary users of DDR4 UDIMM, since their memory controllers are designed for the lighter electrical load unbuffered modules present.
• An ECC UDIMM carries the same 72-bit-wide data path as registered ECC memory, so the missing buffer chip does not reduce its error-correction capability, only its rank support.