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Two green DDR3L ECC registered RDIMM modules on a plain background

OWC

OWC 16GB (2x8GB) DDR3L 1600 CL11 ECC Registered RDIMM 1.35V memory upgrade

SKU CH-371G-4864M

16 GB DDR3L 1600 ECC registered kit for Supermicro SuperServer 4047R, 4048B, 5017GR, 5017R and 5027R systems

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank1Rx4

Capacity 16GB (2 x 8GB)

  • ECC registered design prevents data errors in servers
  • DDR3L 1600 CL11 speed matches Supermicro specifications
  • 35 V low-voltage operation reduces power draw
  • Dual 8 GB modules provide 16 GB total capacity
  • 240-pin RDIMM form factor fits listed SuperServer series

OWC 16GB DDR3L ECC RDIMM kit

This OWC kit supplies 16GB of DDR3L ECC registered memory in two 8GB modules. It is built for Supermicro SuperServer 4047R, 4048B, 5017GR, 5017R and 5027R systems that require registered DIMMs. Standard desktop boards cannot use this memory and it must not be mixed with unbuffered modules.

Sustained operation at 1600MHz CL11

The modules run at DDR3L 1600 with a CAS latency of 11 and a low 1.35V supply. Registered buffering reduces electrical load on the memory controller, helping stability during long server workloads. ECC protection corrects single-bit errors that can accumulate under continuous use.

DDR3L 240-pin interface limits

The 240-pin DDR3L form factor fits only slots keyed for DDR3L registered DIMMs. Maximum throughput is defined by the PC3L-12800 specification at 1600MHz. Systems that need higher bandwidth or a different pin layout will not accept these modules.

How it compares

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

Price $44.99
Cheaper than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $2.81 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number1R6T31R4016P
Total capacity16 GB (2 × 8 GB)
Product type240-Pin DDR3L ECC RDIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsSupermicro SuperServer 4047R Series
Supermicro SuperServer 4048B Series
Supermicro SuperServer 5017GR Series
Supermicro SuperServer 5017R Series
Supermicro SuperServer 5027R Series

Other versions of this model

5 more in the same range

Questions about this item

Does the DDR3L 1600 CL11 ECC registered kit run hot or draw much power in a Supermicro server running 24/7?

The modules operate at 1.35V, which is lower than standard DDR3, reducing heat output and power draw during continuous operation in compatible Supermicro SuperServer systems.

What must the motherboard already support for these 240-pin DDR3L RDIMMs to work?

The board must accept 240-pin DDR3L ECC registered DIMMs at 1600MHz CL11, 1.35V, and 1Rx4 organisation; it will not work with unbuffered or non-ECC slots.

Can I mix this OWC kit with the existing Supermicro MEMDR380L modules already in my 5017R?

Yes, this kit replaces Supermicro part numbers MEMDR380LHL07ER16, MEMDR380LSL10ER16, MEMDR380LSL14ER16 and MEMDR380LSV04ER16, so it matches the registered ECC specification required for mixing.

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