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Green rectangular DDR4 memory module with gold contacts and black chips

Lenovo

Lenovo M393A8G40BB4-CWE 64 GB DDR4 accessory

SKU CH-6B8V-SHTXY MPN M393A8G40BB4-CWE

Single 64 GB DDR4 ECC registered DIMM running at 3200 MT/s with 240 pins

  • High capacity single module simplifies upgrades with 64 GB total memory
  • DDR4 SDRAM technology delivers reliable 3200 MT/s data rate for demanding workloads
  • ECC and registered design protects data integrity in critical server applications
  • 240-pin DIMM form factor fits compatible Lenovo workstation and server slots
  • Single 64 GB module leaves additional slots free for future expansion

Lenovo 64 GB DDR4 ECC Registered module

This single 64 GB DDR4 SDRAM stick uses a 240-pin DIMM form factor and runs at PC4-3200A speed. It is built for servers and workstations that require error-correcting, registered memory in high-density configurations.

Thermals and power profile

As a registered ECC DIMM, the module draws slightly more power than unbuffered equivalents but operates within standard DDR4 voltage limits. No active cooling is required; typical server airflow keeps temperatures in check during sustained workloads.

Upgrade path and fit

The 64 GB capacity suits administrators expanding memory in compatible Lenovo platforms that support 2Rx4 registered modules. Buyers needing unbuffered or non-ECC memory for consumer boards should look elsewhere.

How it compares

Measured against everything we stock in Cable Locks & Laptop Extras, at today’s prices. Recalculated every night.

Price $833.99
Pricier than about 91% of the 8,808 comparable items (median $16.99).

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 240-pin DDR4 module and which orientation mistake should I avoid?

Align the notch on the module with the key in the slot, press firmly until both retaining clips click, and ensure the 240-pin edge is fully seated before powering on.

What maintenance or replacement will the 64 GB ECC registered DDR4 module need over time?

No scheduled maintenance is required; if errors appear, run a memory diagnostic and replace the module if it fails testing.

What limit appears first when the PC4-3200A DDR4 memory runs under sustained heavy load?

The JEDEC-rated 3200 MT/s data rate is the ceiling; sustained workloads cannot exceed this bus speed without overclocking.

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