OEM cross-references are compiled from distributor cross-reference data and OEM documentation. Verify against your vendor's parts list before ordering.
Confirmed = listed in the vendor's memory documentation for that server. Vendor match = the vendor's own part cross-reference matches this module and its speed is validated for the platform; the module is not taken from that server's memory list. Spec match = this module meets the platform's JEDEC requirements (generation, form factor, validated speed); interchangeability is spec-based, not per-server testing. Confirm against your server's qualified parts list before ordering.
Compatible alternatives any brand · same JEDEC specification
Modules match on all key specifications (type, form factor, capacity, speed, rank organization) and are generally interchangeable in servers that accept this spec.
Interchangeability is based on matching JEDEC specifications, not per-server testing. Confirm against your server vendor's qualified parts list.View the full family →
Frequently asked
Is Dell SNPVDFYDC/16G the same module as M391A2K43BB1-CTD?
Yes. Dell resells this Samsung module under part number SNPVDFYDC/16G. The physical module is identical: OEM part numbers are branding, not different hardware.
Can I use a Kingston or Micron module instead?
In most servers, yes: KSM26ED8/16HD (Kingston), KSM26ED8/16ME (Kingston), KSM26ED8/16MR (Kingston) match this module on every key specification (16 GB, DDR4-2666, UDIMM, 2Rx8). Keep vendors consistent within a memory bank, and check your server's qualified parts list for edge cases.
What servers take M391A2K43BB1-CTD?
Dell PowerEdge R240, Dell PowerEdge R250, Dell PowerEdge R340, Dell PowerEdge R350, among others, match it through the vendor's own part cross-reference (e.g. Dell SNPVDFYDC/16G) with a validated speed. Other DDR4 UDIMM platforms generally accept it too; verify against the server's qualified parts list.
