Micron 32GB 3200MHz DDR4 PC4-25600 ECC Registered CL22 288-Pin DIMM 1.2V Single Rank x4 Memory Module – MTA18ASF4G72PZ-3G2B1

Micron 32GB DDR4-3200 ECC RDIMM 1Rx4 — MTA18ASF4G72PZ-3G2B1

The Micron MTA18ASF4G72PZ-3G2B1 is a 32GB DDR4-3200 ECC Registered DIMM (RDIMM) operating at 3200MHz (PC4-25600) with CL22 latency at 1.2V in Single Rank x4 configuration. The B1 suffix identifies a specific production revision of the MTA18ASF4G72PZ-3G2 family for Intel Xeon Scalable and AMD EPYC DDR4 server platforms.

Key Features

• Single Rank x4 (1Rx4) — lower bus loading enabling more DIMMs per channel
• B1 production revision (standard non-Renesas variant)
• DDR4-3200 — highest standard DDR4 server speed
• ECC Registered — register buffer for enterprise server reliability
• Genuine Micron server memory

Product Specifications

• Part Number: MTA18ASF4G72PZ-3G2B1
• Manufacturer: Micron
• Base Family: MTA18ASF4G72PZ-3G2
• Capacity: 32GB
• Type: DDR4 ECC RDIMM
• Speed: 3200MHz (PC4-25600)
• CAS Latency: CL22
• Voltage: 1.2V
• Ranks x Width: 1Rx4
• Pins: 288-pin

Memory Specifications

• Bandwidth: PC4-25600 (25.6 GB/s theoretical)
• ECC: Single-bit error correction and multi-bit error detection
• RAS Features: ECC and registered buffer

Use Cases

• Server configurations requiring lower rank loading for maximum DIMM slots per channel
• 3rd Gen Intel Xeon Scalable and AMD EPYC Milan/Rome servers
• Platforms where server QVL specifies B1 standard revision

Compatibility

• DDR4 RDIMM slots on Intel Xeon Scalable (LGA3647) servers
• AMD EPYC (SP3) DDR4 server platforms
• Not compatible with DDR5 platforms or UDIMM-only systems
• Verify server QVL before installation

Frequently Asked Questions

What is the difference between MTA18ASF4G72PZ-3G2B1 and MTA18ASF4G72PZ-3G2B1R?

MTA18ASF4G72PZ-3G2B1R uses a Renesas register component while MTA18ASF4G72PZ-3G2B1 is the standard variant. Electrical specifications are identical — check your server QVL for the qualified variant.

What is the difference between MTA18ASF4G72PZ-3G2B1 and MTA18ASF4G72PZ-3G2R?

Both are 32GB DDR4-3200 ECC RDIMM 1Rx4. B1 and R are different production revisions with identical electrical specifications — verify your server QVL for the qualified revision.

What does 1Rx4 mean?

Single Rank x4 — one rank of x4 (4-bit wide) DRAM devices providing lower memory controller loading than dual rank configurations.

The Micron MTA18ASF4G72PZ-3G2B1 delivers 32GB DDR4-3200 ECC RDIMM in 1Rx4 configuration — the B1 standard production revision for Intel Xeon Scalable and AMD EPYC DDR4 server platforms.