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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

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • 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.

How it compares

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

Price $25.99
Cheaper than about 82% of the 3,647 comparable items (median $90.99).
Total capacity 4 GB (2 × 2 GB)
Lower than about 80% of the 3,251 comparable items (median 16 GB).
Price per GB $6.50 per GB
Typical for this category: the median of 3,251 items is $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 nameHYNIX
Product lineDesktop Memory
Model nameHMT125U6DFR8C-H9
Total capacity4 GB (2 × 2 GB)
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.5 V

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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