UBB Store

Crucial CT64M64S4W75 512MB PC133 144-Pin SDRAM SO-DIMM Vintage Laptop RAM
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Crucial CT64M64S4W75 512MB PC133 144-Pin SDRAM SO-DIMM Vintage Laptop RAM
Price: US $39.00
💻 CRUCIAL 512MB PC133 VINTAGE LAPTOP MEMORY⭐ 512MB • PC133 • 133MHz • 144-PIN SO-DIMM • ORIGINAL CRUCIAL MODULE

Here's a great find for the vintage laptop collector, retro-computing enthusiast or technician repairing legacy equipment.

Offered for sale is one genuine Crucial Technology 512MB PC133 SDRAM laptop memory module, removed from older computer equipment and preserved in our computer-parts inventory.

This isn't modern DDR memory.

It's an original 144-pin PC133 SDRAM SO-DIMM from the generation of laptops that preceded DDR memory — and at 512MB, it represents a particularly useful capacity for compatible vintage machines.

🔎 EXACT MODULE INFORMATION

Manufacturer: Crucial Technology
Part Number: CT64M64S4W75.P16LFY
Base Part Number: CT64M64S4W75
Capacity: 512MB
Memory Type: SDR SDRAM
Speed: PC133 / 133MHz
Form Factor: SO-DIMM
Pins: 144-Pin
Configuration: 64M × 64
ECC: Non-ECC
Buffering: Unbuffered
CAS Latency: CL3
Voltage: 3.3V

Those core specifications for CT64M64S4W75 are independently documented by current legacy-memory suppliers and 's product catalog.

🔥 WHY THIS OLD RAM IS STILL DESIRABLE512MB PC133 LAPTOP MEMORY ISN'T SOMETHING YOU FIND EVERY DAY

A lot of surviving PC133 laptop memory is in smaller capacities.

This module gives a compatible vintage machine a full 512MB on a single SO-DIMM, making it especially interesting for restoration and maximum-memory upgrade projects where memory slots may be limited.

It's an excellent candidate for:

💻 Vintage laptop restoration
🕹️ Retro-computing projects
🔧 Legacy computer repair
🧰 Technician spare-parts inventory
🏭 Older industrial/commercial computers
📀 Period-correct Windows-era systems
🖥️ Collectors preserving original hardware

Generic 512MB PC133 144-pin SO-DIMMs remain commercially available specifically for legacy machines, and exact CT64M64S4W75 modules continue to command much higher asking prices from specialty legacy-parts suppliers.

📸 EXACT MODULE PICTUREDNO STOCK PHOTOS — YOU RECEIVE THIS EXACT CRUCIAL STICK

The photographs clearly show the original Crucial identification label:

CT64M64S4W75.P16LFY
512MB 144-PIN SODIMM
64MX64 SYNC PC133

The reverse side also shows the original KTI memory chips.

This is especially helpful for vintage buyers who need to compare the exact part number, chip configuration and physical layout before purchasing.

⚠️ CONDITION NOTES

This is a USED VINTAGE COMPUTER PULL.

The module came from older computer equipment but has not been tested recently, and we no longer have the appropriate vintage laptop available to verify operation.

Therefore, this module is being sold UNTETSTED / AS-IS.

No guarantee is made regarding functionality or compatibility with any particular computer.

The module appears physically complete and is in good overall cosmetic condition for its age. The edge contacts, memory chips and circuit board are present as shown. Normal signs of previous installation, removal, handling and storage should be expected.

Please verify CT64M64S4W75 / 512MB PC133 / 144-pin SO-DIMM compatibility with your equipment before purchasing.

📸 The photographs show the actual item you will receive.📦 FREE SHIPPING🚚 FREE SHIPPING WITHIN THE USA

The memory module will be protected for shipment to help prevent damage to the circuit board, chips and gold contacts.

🏷️ Item Specifics

Brand: Crucial
Model: CT64M64S4W75
MPN: CT64M64S4W75.P16LFY
Type: SDR SDRAM
Form Factor: SO-DIMM
Capacity per Module: 512MB
Total Capacity: 512MB
Number of Modules: 1
Number of Pins: 144
Bus Speed: PC133
Memory Speed: 133MHz
Memory Features: Non-ECC, Unbuffered
CAS Latency: CL3
Voltage: 3.3V



Buy Now