IBM

IBM 512MB 184-Pin 266Mhz DIMM DDR SDRAM

Name: IBM 512MB 184-Pin 266Mhz DIMM DDR SDRAM
Brand: IBM
SKU: B00006HXXB

Bottom line: The IBM 512MB 184-Pin 266Mhz DIMM DDR SDRAM is a specs-and-price decision rather than a crowd-consensus one in the memory & ram category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-18

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Before you buy

Confirm socket / form-factor / power-rating compatibility against your build before ordering
Used and vintage listings vary by seller and condition — check the listing photos, description and return terms before buying

Manufacturer description

33L3306 IBM 512MB DDR 266MHZ PC2100 184-PIN CL2 Unbuffered SDRAM DIMM MEMORY

SpecPicks Verdict

SpecPicks scored IBM 512MB 184-Pin 266Mhz DIMM DDR SDRAM using a rating × review-volume × price-fit model applied to published specs and reviews across the memory & ram category. IBM's memory & ram lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for memory & ram of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Full Specifications

Brand	IBM
RAM Size	512 MB
Form Factor	184-pin DIMM
Memory Speed	266 MHz
Model Number	33L3306
Number of Pins	184
Mfr Part Number	33L3306
Item Part Number	33L3306
Compatible Devices	Desktop
Computer Memory Size	512 MB
RAM Memory Technology	DDR
Global Trade Identification Number	00087944725329

Ready to buy?

IBM 512MB 184-Pin 266Mhz DIMM DDR SDRAM is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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