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Catalog/Micron/DDR4 LRDIMM/MTA72ASS8G72LZ-2G6
Micron · Server memory

MTA72ASS8G72LZ-2G6

Verified

64 GB DDR4-2666 ECC Load-Reduced DIMM (LRDIMM), quad-rank ×4. Sold by Dell under its own part numbers, all cross-referenced below.

independent sources How we verify →
Specifications JEDEC / manufacturer data
Memory typeDDR4datasheet + 3 more
Module typeLRDIMM · ECC Load-Reduced DIMMdatasheet + 3 more
Capacity64 GBdatasheet + 4 more
SpeedDDR4-2666 · PC4-21328datasheet + 3 more
Organization / rank4Rx4datasheet + 3 more
CAS latency19datasheet + 6 more
Voltage1.2 VJEDEC standard for DDR4
Form factor288-pin DIMMstandard for DDR4 LRDIMM
OEM part numbers same module, OEM-branded
VendorOEM part numberVerification
DellA9781930✓ 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 39 of 92 platforms
Spec match covers every DDR4 LRDIMM platform we track, so the spec-match rows above are a sample across vendors: 53 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
KingstonKSM26LQ4/64HAI64 GB · DDR4-2666 · LRDIMM · 4Rx4
KingstonKSM26LQ4/64HAM64 GB · DDR4-2666 · LRDIMM · 4Rx4
KingstonKSM26LQ4/64HCI64 GB · DDR4-2666 · LRDIMM · 4Rx4
KingstonKSM26LQ4/64HCM64 GB · DDR4-2666 · LRDIMM · 4Rx4
MicronMTA72ASS8G72LZ-2G6D2QI64 GB · DDR4-2666 · LRDIMM · 4Rx4
SamsungM386A8K40BM2-CTD64 GB · DDR4-2666 · LRDIMM · 4Rx4
SamsungM386A8K40BM2-CTD7Q64 GB · DDR4-2666 · LRDIMM · 4Rx4
SamsungM386A8K40BM2-CTD7Y64 GB · DDR4-2666 · LRDIMM · 4Rx4
SamsungM386A8K40CM2-CTD64 GB · DDR4-2666 · LRDIMM · 4Rx4
SamsungM386A8K40DM2-CTD64 GB · DDR4-2666 · LRDIMM · 4Rx4
SK hynixHMAA8GL7AMR4N-VK64 GB · DDR4-2666 · LRDIMM · 4Rx4
SK hynixHMAA8GL7CPR4N-VK64 GB · DDR4-2666 · LRDIMM · 4Rx4
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 A9781930 the same module as MTA72ASS8G72LZ-2G6?
Yes. Dell resells this Micron module under part number A9781930. 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: KSM26LQ4/64HAI (Kingston), KSM26LQ4/64HAM (Kingston), KSM26LQ4/64HCI (Kingston) match this module on every key specification (64 GB, DDR4-2666, LRDIMM, 4Rx4). Keep vendors consistent within a memory bank, and check your server's qualified parts list for edge cases.
What servers take MTA72ASS8G72LZ-2G6?
Dell PowerEdge C6420, Dell PowerEdge C6520, Dell PowerEdge C6525, Dell PowerEdge FC640, among others, match it through the vendor's own part cross-reference (e.g. Dell A9781930) with a validated speed. Other DDR4 LRDIMM platforms generally accept it too; verify against the server's qualified parts list.