MTA36ASF4G72PZ-2G6E1 - 32GB DDR4-2666 PC4-21300 1.2V ECC CL19 288-Pin Registered RDIMM Server Memory

32GB DDR4-2666 PC4-21300 1.2V ECC CL19 288-Pin Registered RDIMM Server Memory

High-performance 32GB DDR4-2666 PC4-21300 ECC Registered RDIMM (RDIMM) module designed for enterprise servers and workstations. Running at 2666 MT/s with ECC error correction and a low 1.2V operating voltage, this module delivers a strong balance of bandwidth, reliability, and energy efficiency for virtualized environments, databases, and other memory-intensive workloads.

Technical Specifications

• Capacity: 32GB
• Memory Type: DDR4 ECC Registered (RDIMM)
• Speed: 2666 MT/s (DDR4-2666), PC4-21300
• Voltage: 1.2V
• CAS Latency: CL19 (typical for 2666 RDIMM)
• Rank: Dual Rank (2Rx4)
• Error Correction: ECC (Error-Correcting Code)
• Form Factor: 288-Pin RDIMM
• DRAM Organization: x4 devices (2G x 4 class per chip, 36-bit module with ECC)
• Intended Platform: Server / Workstation platforms that support DDR4 ECC Registered memory
• Typical Chipsets: Intel Xeon Scalable platforms, AMD EPYC platforms, and equivalent server/workstation chipsets

Interchangeable / Replacement Part Numbers

This listing may ship as any equivalent 32GB DDR4-2666 2Rx4 ECC Registered RDIMM from major vendors, including but not limited to:

• Samsung: M393A4K40BB2-CTD and equivalent 32GB DDR4-2666 2Rx4 RDIMM models
• Micron: MTA36ASF4G72PZ-2G6xx and equivalent 32GB DDR4-2666 2Rx4 RDIMM models
• SK hynix: HMA84GR7CJR4N-xx and equivalent 32GB DDR4-2666 2Rx4 RDIMM models
• Crucial / Enterprise: CT32G4RFD4266 and equivalent 32GB DDR4-2666 2Rx4 RDIMM models

OEM-labeled versions of these modules may carry additional Dell, HPE, Lenovo, Cisco, Supermicro, or other server vendor part numbers, but the electrical and functional specifications remain the same: 32GB DDR4-2666 PC4-21300 1.2V ECC 2Rx4 Registered RDIMM.

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system’s specific configuration, including motherboard BIOS version and chipset support. It’s essential to verify compatibility with your system or motherboard manufacturer before installation.

✔ Dell PowerEdge:
R440, R540, R640, R740, R740xd, R7415, R7425, R840, R940, T340, T440, T640

✔ HPE ProLiant Gen10 / Gen10+ (DDR4 RDIMM platforms):
DL20 Gen10, DL160 Gen10, DL180 Gen10, DL325 Gen10/Gen10+, DL360 Gen10/Gen10+, DL380 Gen10/Gen10+, DL385 Gen10/Gen10+, ML110 Gen10, ML350 Gen10

✔ Lenovo ThinkSystem:
SR530, SR550, SR570, SR590, SR630, SR650, SR850, SR950, ST550

✔ Supermicro (DDR4 Xeon Scalable / EPYC boards):
X11 single- and dual-socket server boards that support DDR4 RDIMM (for example X11DPi, X11DPH, X11Sxx families)

✔ Cisco UCS (DDR4 RDIMM platforms):
UCS C220 M5, C240 M5, B200 M5 and similar DDR4 RDIMM-based UCS systems

✔ Fujitsu PRIMERGY:
RX2520 M4, RX2530 M4, RX2540 M4 and other DDR4-2666 RDIMM capable PRIMERGY models

✔ Enterprise Workstations (DDR4 RDIMM capable):

• Dell Precision: 5820, 7820, 7920 Tower/ Rack configurations that support RDIMM
• HPE Z Series: Z4 G4, Z6 G4, Z8 G4 workstations configured for RDIMM
• Lenovo ThinkStation: P520, P720, P920 configurations that accept RDIMM

✔ Other Systems:
Any server or workstation that explicitly supports 32GB DDR4-2666 ECC Registered RDIMM (2Rx4) modules and uses 288-pin DDR4 RDIMM slots.

☑️ Key Features

✔️ 32GB capacity per module for high-density memory configurations
✔️ DDR4-2666 PC4-21300 speed for improved bandwidth vs. older DDR4-2133/2400
✔️ ECC Registered design for enhanced stability in enterprise and data center environments
✔️ Low 1.2V operating voltage helps reduce power consumption and heat output
✔️ Compatible with a broad range of modern Intel Xeon and AMD EPYC server platforms

⚙️ Fit Notes

• This is ECC Registered (RDIMM) memory. It is not compatible with systems that require:

• Non-ECC desktop memory
• ECC Unbuffered (ECC UDIMM) memory
• Laptop SO-DIMM memory

• Many platforms cannot mix RDIMM with UDIMM or LR-DIMM; all installed modules should be of the same type (all RDIMM) for proper operation.