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Green rectangular DIMM with gold contacts and black chips 168 pin

Simmtec, Inc

Simmtec, Inc 512MB SDRAM DIMM 168 Pin 133Mhz PC133 desktop RAM

SKU CH-EMC8-C3EFZ

A 512MB PC133 SDRAM DIMM with 168 pins running at 133MHz for desktop memory upgrades

  • Total capacity512 MB
  • Rated speedPC 133
  • 512 MB capacity supports multitasking in legacy systems
  • 133 MHz PC133 speed matches older motherboard specs
  • 168-pin DIMM form factor fits period-correct desktop slots
  • Non-ECC, non-parity design suits standard desktop boards
  • 8 V operation reduces power draw and heat

512MB PC133 Desktop DIMM

This 168-pin SDRAM module provides 512MB of memory for desktop systems that use the PC133 standard. It is intended for upgrading or repairing legacy computers that require this specific form factor and speed.

Tested Grade-A modules

Each stick is tested before shipment to reduce the chance of compatibility errors or system instability. The supplier highlights that untested, lower-grade memory can cause crashes or motherboard damage, so this verification step aims to protect the build.

Suits legacy PC133 systems

This product fits owners of older desktops needing a direct PC133 replacement. It will not work in motherboards that require DDR2 240-pin memory, higher speeds such as 800MHz, or capacities beyond 512MB per module.

How it compares

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

Price $26.99
Cheaper than about 81% of the 3,647 comparable items (median $90.99).
Total capacity 512 MB
Lower than about 99% of the 3,251 comparable items (median 16 GB).
Price per GB $52.71 per GB
Pricier than about 90% 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 capacity512 MB
Performance
Rated speedPC 133

Questions about this item

How often will the 512MB PC133 DIMM need replacement under normal desktop use?

SDRAM modules have no moving parts and typically last the lifetime of the system; replacement is only needed if a fault develops or capacity becomes insufficient.

What limit appears first when the 168-pin module runs at 133MHz continuously?

The 133MHz bus speed and 512MB capacity ceiling are the fixed limits; sustained throughput cannot exceed the PC133 specification.

How much heat and power does the 1.8V DDR2 stick produce during all-day operation?

Operating at 1.8V, the DDR2 DIMM draws low power and generates minimal heat, requiring only standard case airflow for cooling.

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