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Catalog/Micron/DDR5 RDIMM/MTC40F2046S1RC64BD2
Micron · Server memory

MTC40F2046S1RC64BD2

Verified

64 GB DDR5-6400 ECC Registered DIMM (RDIMM), dual-rank ×4. Sold by Dell and HPE under their own part numbers, all cross-referenced below.

independent sources How we verify →
Specifications JEDEC / manufacturer data
Memory typeDDR53 sources
Module typeRDIMM · ECC Registered DIMMdatasheet + 2 more
Capacity64 GB3 sources
SpeedDDR5-6400 · PC5-512003 sources
Organization / rank2Rx43 sources
CAS latency52datasheet + 4 more
Voltage1.1 VJEDEC standard for DDR5
Form factor288-pin DIMMstandard for DDR5 RDIMM
OEM part numbers same module, OEM-branded
VendorOEM part numberVerification
DellAD089130✓ verified
HPEP64986-B21✓ verified
OEM cross-references are compiled from distributor cross-reference data and OEM documentation. Verify against your vendor's parts list before ordering.
Fits these servers 30 of 65 platforms
Spec match covers every DDR5 RDIMM platform we track, so the spec-match rows above are a sample across vendors: 35 further platforms also match this module on spec. A server missing from this table is not a compatibility limit. Browse all servers →
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
ManufacturerPart numberSpec
KingstonKSM64R52BD4-64HA64 GB · DDR5-6400 · RDIMM · 2Rx4
KingstonKSM64R52BD4-64MD64 GB · DDR5-6400 · RDIMM · 2Rx4
MicronMTC40F2046S1RC64BR64 GB · DDR5-6400 · RDIMM · 2Rx4
SamsungM321R8GA0EB2-CCP64 GB · DDR5-6400 · RDIMM · 2Rx4
SamsungM321R8GA0PB2-CCP64 GB · DDR5-6400 · RDIMM · 2Rx4
SK hynixHMCG94AHBRA64 GB · DDR5-6400 · RDIMM · 2Rx4
SK hynixHMCG94AHBRA487N64 GB · DDR5-6400 · RDIMM · 2Rx4
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 AD089130 the same module as MTC40F2046S1RC64BD2?
Yes. Dell resells this Micron module under part number AD089130; HPE does the same as P64986-B21. 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: KSM64R52BD4-64HA (Kingston), KSM64R52BD4-64MD (Kingston), MTC40F2046S1RC64BR (Micron) match this module on every key specification (64 GB, DDR5-6400, RDIMM, 2Rx4). Keep vendors consistent within a memory bank, and check your server's qualified parts list for edge cases.
What servers take MTC40F2046S1RC64BD2?
Dell PowerEdge R470, Dell PowerEdge R570, Dell PowerEdge R6615, Dell PowerEdge R670, among others, match it through the vendor's own part cross-reference (e.g. Dell AD089130) with a validated speed. Other DDR5 RDIMM platforms generally accept it too; verify against the server's qualified parts list.