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Crucial 1GB DDR-400 (PC3200) Desktop DIMM – New in Sealed Anti-Static Bag A brand-new Crucial 1GB DDR memory module made with Micron chips, still sealed in its original anti-static bag. It’s ideal for Pentium 4, Athlon XP, and Athlon 64 (Socket 754/939) retro builds, or for maxing out an early-2000s desktop. I have 4 available. The price is for one module, so choose your quantity at checkout. Buy 2 or 4 to run dual-channel. Specifications - Brand: Crucial Technology (a division of Micron)
- Crucial part number: CT12864Z40B.16TFY
- Micron part number: MT16VDDT12864AY-40BF2
- JEDEC rating: PC3200U-30331-Z
- Capacity: 1GB (one module), 128M × 64
- Type: DDR-400 (PC3200), CL3, non-ECC, unbuffered
- Form factor: 184-pin DIMM (for desktops)
- Chips: 16 Micron chips, double-sided
- Date code: 200702
- Made in: Singapore, lead-free
Compatibility - For desktops that use DDR1 (184-pin) memory. It won’t fit DDR2, DDR3, or laptop (SO-DIMM) slots.
- DDR-400 usually works in DDR-266/333 systems too, running at the slower speed. Some older chipsets can’t use 1GB modules that have this chip layout, so please check your board’s maximum memory and supported module size before buying.
What’s Included - One (1) Crucial 1GB DDR-400 DIMM in its original sealed anti-static bag, per quantity purchased
Condition Notes - New and sealed in the original Crucial anti-static bag. These weren’t sold in retail blister packs. The bag has minor creases from storage (see photos).
- The modules have not been tested because the bags are sealed.
- The label says “Removal will void Warranty.” Any manufacturer warranty is between you and Crucial/Micron. I don’t offer a warranty.
Shipping - I ship on Fridays and Saturdays. Orders placed during the week are packed and shipped at the end of the week, and some packages go out on Monday.
- Shipped in protective packaging so the module stays safe.
Return Policy - This item is sold as-is, with no warranty, express or implied.
- No returns, refunds, or exchanges.
- Please check compatibility, review all photos and this description before buying, and send me any questions before you buy.

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