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Two green DDR3 UDIMM sticks with gold contacts

Simmtec, Inc

Simmtec, Inc 4GB (2x2GB) DDR3-1600 PC3-12800 2Rx8 Desktop Memory

SKU CH-DJFS-Z4YFM

A 4 GB dual-channel DDR3 kit running at 1600 MHz with 240-pin UDIMM modules at 1.5 V

  • Total capacity4 GB (2 × 2 GB)
  • Rated speedDDR3 1600 (PC3 12800)
  • Dual-channel kit boosts throughput with two matched 2 GB modules
  • DDR3-1600 speed delivers 12800 MB/s peak bandwidth for responsive desktop performance
  • Non-ECC unbuffered design suits standard consumer motherboards without server overhead
  • 2Rx8 organisation provides efficient rank interleaving on each DIMM
  • 5 V operation and 240-pin UDIMM form factor match mainstream DDR3 desktop slots

Dual-channel kit for desktop upgrades

This 4 GB kit contains two 2 GB DDR3 modules rated at 1600 MHz. It targets owners of older systems who need a straightforward capacity increase without changing platform.

240-pin unbuffered DIMMs at 1.5 V

The standard desktop form factor fits typical DDR3 slots and the non-ECC, unbuffered design matches consumer motherboard requirements. JEDEC-compliant chips from Micron, Samsung, Hynix or Elpida provide baseline compatibility.

Matched pair enables dual-channel operation

Installing both modules together activates the board's dual-channel controller for improved bandwidth. No extra software or configuration is required beyond normal BIOS detection.

How it compares

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

Price $22.99
Cheaper than about 85% 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 $5.75 per GB
Cheaper than about 62% 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
Total capacity4 GB (2 × 2 GB)
Performance
Rated speedDDR3 1600 (PC3 12800)

Questions about this item

What speed does the DDR3-1600 PC3-12800 interface cap the memory at in practice?

The modules run at 1600MHz with a PC3-12800 bandwidth rating, delivering that data rate when the motherboard supports the JEDEC standard.

What physical slot and pin count does this 240-pin UDIMM need to fit a desktop motherboard?

It requires a standard DDR3 240-pin DIMM slot on a desktop board; the notch position matches the DDR3 keying so it only seats one way.

How is the kit installed and which step do builders often get wrong?

Power off the PC, open the case, align the notch on each 240-pin stick with the slot key, press down firmly until both side clips click shut, then power on to confirm 4GB is detected.

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