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Four green DDR3L ECC registered DIMMs with gold contacts

OWC

OWC 1R6T32R4064S 64GB DDR3L 1600 CL11 ECC Registered RDIMM 4x16GB SuperServer 2027 2028 4027

SKU CH-GT91-JHFRW

64GB kit of four 16GB DDR3L 1600 CL11 ECC registered RDIMMs for Supermicro SuperServer 2027, 2028 and 4027 series

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB (4 x 16GB)

  • ECC registered design protects data integrity in server workloads
  • 64GB kit with four 16GB modules maximises SuperServer capacity
  • DDR3L 1600 CL11 at 1.35V reduces power draw versus standard DDR3
  • 240-pin RDIMM form factor fits Supermicro 2027, 2028 and 4027 series
  • 2Rx4 dual-rank organisation enables higher density per channel

Server-specific DDR3L kit

This 64 GB kit contains four 16 GB DDR3L ECC registered RDIMMs rated at 1600 MHz with CL11 latency. It is built for Supermicro SuperServer 2027PR, 2027R, 2027TR, 2028UT and 4027GR platforms that require registered memory. The modules operate at 1.35 V and use a 240-pin form factor with 2Rx4 organisation. Standard desktop boards cannot use this memory.

Registered DDR3L constraints

Registered DIMMs add a clock-cycle delay that desktop chipsets do not expect, so they will not post in consumer motherboards. The kit cannot be mixed with unbuffered modules and requires a platform that explicitly supports ECC registered DDR3L at 1.35 V. Maximum capacity and population rules are set by the server documentation, not by the modules themselves.

Pre-installation checklist

Confirm the target SuperServer model appears in the supported list above and that the BIOS is current enough for 16 GB registered DIMMs. Verify the memory slots accept 240-pin DDR3L and that the system voltage rail is 1.35 V. Check the server manual for slot-filling order and maximum rank count per channel before ordering.

How it compares

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

Price $178.99
Cheaper than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $2.80 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 number1R6T32R4064S
Total capacity64 GB (4 × 16 GB)
Product type240-Pin DDR3L ECC RDIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsSupermicro SuperServer 2027PR Series
Supermicro SuperServer 2027R Series
Supermicro SuperServer 2027TR Series
Supermicro SuperServer 2028UT Series
Supermicro SuperServer 4027GR Series

Other versions of this model

5 more in the same range

Questions about this item

Should I pick the 4x16 GB kit or a different capacity for my Supermicro SuperServer 2027PR?

The kit contains four 16 GB modules for a total of 64 GB and is validated for Supermicro SuperServer 2027PR, 2027R, 2027TR, 2028UT and 4027GR series.

What does the 1600 MHz speed mean once the modules are installed in the server?

The modules run at DDR3L 1600 (PC3L-12800) with CL11 latency at 1.35 V, delivering the rated bandwidth when the server memory controller operates at that frequency.

How does the 240-pin DDR3L ECC registered interface limit what I can do with this memory?

The 240-pin DDR3L registered DIMMs require a server or workstation platform that supports ECC registered memory; they will not work in standard desktop boards or alongside unbuffered DIMMs.

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