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Green rectangular circuit board with gold edge contacts and black memory chips, no heat spreader

OWC

OWC 16GB DDR4 2933MHz ECC Registered RDIMM 2Rx8 CL21 1.2V 288pin System Specific Memory

SKU CH-R38N-32A75

16 GB DDR4-2933 ECC registered RDIMM for Supermicro X11SP series motherboards

  • Total capacity16 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx8

Capacity 16GB

  • 16GB DDR4 2933MHz ECC registered RDIMM for Supermicro X11SP server boards
  • CL21 latency at 1.2V gives stable throughput for 24/7 workloads
  • 2Rx8 dual-rank organisation increases memory density per slot
  • Backward compatible with 2133MHz 2400MHz 2666MHz systems for flexible deployment
  • Replaces Supermicro MEMDR416LCL01ER29 MEMDR416LCL03ER29 MEM-DR416LD-ER29 MEMDR416LHL04ER29 MEMDR416LHL05ER29

OWC 16GB DDR4 2933MHz ECC RDIMM

This module provides 16GB of DDR4 ECC registered memory rated at 2933MHz with CL21 latency. It is designed for server and workstation platforms that require registered DIMMs. The part is validated for Supermicro X11SPi-TF, X11SPL-F, X11SPM-F, X11SPM-TF and X11SPM-TPF motherboards. It will not work in standard desktop computers.

Verify registered DIMM support before ordering

Confirm that your motherboard accepts 288-pin DDR4 registered ECC modules and that the CPU memory controller supports 2933MHz operation. The module runs at 1.2V and is backward compatible with 2133MHz, 2400MHz and 2666MHz speeds. Registered memory cannot be mixed with unbuffered memory in the same system.

Low-profile design without heat spreader

The 288-pin RDIMM lacks a heat spreader, keeping the height low for dense server chassis. Gold-edge connectors meet JEDEC and RoHS specifications for reliable insertion. The 2Rx8 rank organisation suits multi-channel server configurations. OWC tests every module in-house before shipment.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $106.99
Cheaper than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.69 per GB
Cheaper than about 59% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number2R9D42R816 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro Motherboard X11SPi-TF
Supermicro Motherboard X11SPL-F
Supermicro Motherboard X11SPM-F
Supermicro Motherboard X11SPM-TF
Supermicro Motherboard X11SPM-TPF

Other versions of this model

5 more in the same range

Questions about this item

Does the 16GB DDR4 2933MHz ECC Registered RDIMM ship alone or as a kit?

The module is sold as a single 16GB stick; add more sticks to reach the capacity your Supermicro board supports.

Should I pick the 2933MHz CL21 version or a slower speed for my X11SPM-F?

Choose this 2933MHz CL21 module; it runs at 2933MHz and also works at 2666MHz, 2400MHz and 2133MHz if the system requires it.

Will the advertised 2933MHz speed actually run at that rate in my Supermicro X11SPi-TF?

Yes, the board supports 2933MHz DDR4, so the module operates at its rated 2933MHz CL21 without manual tuning.

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