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Green 240-pin DDR3 memory module with black chips, no heat spreader

OWC

OWC 4GB DDR3 1600 CL11 1Rx8 240-pin 1.5V Non-ECC UDIMM for AS7009RD AS7012RD

SKU CH-ZS4B-F6SNJ

4 GB DDR3-1600 CL11 UDIMM for ASUSTOR AS7009RD and AS7012RD NAS upgrades

  • Capacity4GB
  • Type240-Pin DDR3 Non-ECC UDIMM
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Voltage1.5V
  • ECCNo

Capacity 4GB

  • 4GB DDR3 1600 memory boosts multitasking on compatible ASUSTOR NAS
  • JEDEC-standard PC3-12800 CL11 module ensures warranty-safe upgrade
  • 5V unbuffered non-ECC 240-pin DIMM installs without tools
  • Single 1Rx8 rank design matches original AS7R-RAM4G specification
  • Tested for ASUSTOR AS7009RD and AS7012RD system compatibility

OWC 4GB DDR3 1600 for ASUSTOR NAS

This OWC module is a 4GB DDR3 1600 CL11 unbuffered UDIMM built specifically for ASUSTOR AS7009RD and AS7012RD systems. It runs at 1.5V without ECC and uses a 1Rx8 rank layout. The part replaces ASUSTOR AS7R-RAM4G and meets JEDEC standards.

240-pin DDR3 form factor

The single specification that decides fit is the 240-pin DDR3 UDIMM form factor combined with DDR3 1600 speed and CL11 timing. Only systems that accept this exact pin count, voltage and latency will recognise the module. ASUSTOR AS7009RD and AS7012RD are the validated platforms.

4GB capacity for everyday NAS workloads

Four gigabytes handles typical file serving, backup jobs and light application hosting on the compatible ASUSTOR units. Heavy virtualisation, large database caches or concurrent high-resolution media transcoding will exceed this headroom. Builders needing more memory must look beyond this single module.

Highlights

  • 4GB DDR3 1600 memory boosts multitasking on compatible ASUSTOR NAS
  • JEDEC-standard PC3-12800 CL11 module ensures warranty-safe upgrade
  • 5V unbuffered non-ECC 240-pin DIMM installs without tools
  • Single 1Rx8 rank design matches original AS7R-RAM4G specification
  • Tested for ASUSTOR AS7009RD and AS7012RD system compatibility

Specifications

BrandOWC
Part Number1U6D31R804GB
Capacity4GB
Type240-Pin DDR3 Non-ECC UDIMM
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemASUSTOR AS7009RD
ASUSTOR AS7012RD

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Questions about this item

What real-world speed does the DDR3 1600 rating deliver once installed in an ASUSTOR NAS?

The module runs at 1600 MHz with CL11 timing, providing the standard DDR3 1600 bandwidth your AS7009RD or AS7012RD expects for memory-intensive tasks.

Does the PC3-12800 label limit the bandwidth I can actually use?

PC3-12800 confirms a peak transfer rate of 12 800 MB/s, which is the ceiling the memory controller in these NAS units can address.

Will this 240-pin UDIMM fit the memory slots on my AS7009RD or AS7012RD?

Yes, the 240-pin unbuffered DIMM form factor matches the desktop-class slots used in both compatible ASUSTOR models.

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