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Green printed circuit board with black memory chips, 288 gold contacts along the bottom edge, no heat spreader or LED lighting

OWC

OWC 8GB DDR4 2133 CL15 1.2V Non-ECC UDIMM desktop RAM

SKU CH-HW9Y-79Y70

8 GB DDR4 desktop module running at 2133 MHz with CL15 latency and 1.2 V operation

  • Total capacity8 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forDesktops
  • 8GB capacity expands multitasking headroom for demanding workloads
  • DDR4 2133MHz speed delivers responsive data throughput
  • CL15 latency supports quick memory access cycles
  • 2V operation reduces power draw and heat output
  • 288-pin UDIMM form factor fits standard desktop slots

8 GB DDR4 2133 UDIMM

This 8 GB DDR4 module runs at 2133 MHz with CL15 timing and 1.2 V operation. It uses a 288-pin unbuffered non-ECC design suited for desktop PCs, workstations and compatible NAS systems.

Replaces QNAP RAM-8GDR4-LD-2133

The part matches the QNAP RAM-8GDR4-LD-2133 specification exactly. The upgrade is worthwhile when a system needs more capacity or a warranty-safe JEDEC-compliant module for improved multitasking responsiveness.

Suits DIY desktop and NAS upgrades

It suits owners of compatible desktops, workstations or NAS units that accept DDR4 2133 UDIMMs. Users requiring ECC, registered DIMMs, higher speeds or larger single-module capacities should look at other options.

How it compares

Measured against everything we stock in Desktop RAM, at today’s prices. Recalculated every night.

Price $46.99
Cheaper than about 68% of the 3,647 comparable items (median $90.99).
Total capacity 8 GB
Lower than about 60% of the 3,251 comparable items (median 16 GB).
Price per GB $5.87 per GB
Cheaper than about 60% of the 3,251 comparable items (median $6.75 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 number2U1D42R808 GB
Total capacity8 GB
Product colorBlack
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forDesktops
More details
LED lightingNone

Questions about this item

Will the 288-pin DDR4 UDIMM fit my desktop motherboard slot?

The module uses the standard 288-pin DDR4 UDIMM form factor, so it fits any desktop motherboard with a DDR4 DIMM slot.

What is the correct way to seat the module, and what step do people often miss?

Align the notch with the slot key, press down firmly until both side clips click locked, and verify the module sits flat — many forget to check both clips.

Does this non-ECC DDR4 RAM need any firmware updates or periodic replacement?

No firmware is required; the JEDEC-compliant 1.2 V module runs without updates and is rated for the system's lifetime under normal use.

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