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Two green DDR3 DIMM sticks with black chips and gold contacts

SK hynix

SK hynix HMT125U6DFR8C-H9 4GB (2x2GB) DDR3-1333 CL9 1.50V desktop RAM

SKU CH-MWAA-JZKBF MPN HMT125U6DFR8C-H9

A 4 GB DDR3 kit of two 2 GB DIMMs running at 1333 MHz with CL9 latency and 1.50 V operation

  • Capacity4GB (2 x 2GB)
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Voltage1.50V
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • 4 GB total capacity from two 2 GB modules
  • DDR3-1333 speed rated at PC3-10600
  • CL9 latency for responsive desktop performance
  • 50 V standard voltage for broad compatibility
  • 240-pin unbuffered DIMM form factor for desktop motherboards

What this kit is

This kit supplies two 2 GB unbuffered DIMMs for a total of 4 GB of DDR3 desktop memory. It is intended for older systems that still accept 240-pin modules running at the standard 1.50 V level.

The specification that decides fit

The modules run at DDR3-1333 with a CAS latency of CL9 and conform to the PC3-10600 rating. If the motherboard requires a different speed, voltage or pin count these sticks will not work.

Installation and common issues

The 240-pin DIMMs slot into standard desktop memory sockets with a single keyed notch. The usual problem is mixing these non-ECC sticks with registered or ECC modules, which prevents the system from posting.

Highlights

  • 4 GB total capacity from two 2 GB modules
  • DDR3-1333 speed rated at PC3-10600
  • CL9 latency for responsive desktop performance
  • 50 V standard voltage for broad compatibility
  • 240-pin unbuffered DIMM form factor for desktop motherboards

Specifications

BrandHYNIX
SeriesDesktop Memory
ModelHMT125U6DFR8C-H9
Capacity4GB (2 x 2GB)
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL9
Voltage1.50V
ECCNo
Buffered/RegisteredUnbuffered

Questions about this item

What does the DDR3-1333 speed rating mean once the modules are installed?

The memory runs at 1333 MT/s, delivering a peak bandwidth of 10600 MB/s per module when the system is configured for that speed.

How does the PC3-10600 interface limit real-world throughput?

PC3-10600 caps the theoretical maximum transfer rate at 10600 MB/s; actual throughput will be lower due to latency and controller overhead.

Will these 240-pin DIMMs fit a standard desktop motherboard slot?

Yes, each module uses the 240-pin DDR3 DIMM form factor that matches the standard desktop memory slot.

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