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Unbuffered DIMMs are the ideal module for high-speed, low-cost computing systems. Our UDIMMs come in SDRAM, DDR, DDR2, DDR3, and DDR4 solutions and offer data rates as high as 2400 MT/s, and provide parity and ECC capability. They’re an industry standard in high-volume production, offering a great balance of price and performance.

By Technology

Technology Density Width RoHS Pin Count Voltage
DDR SDRAM 256MB, 512MB, 1GB x64, x72 Yes 184-pin 2.6V, 2.5V
DDR2 SDRAM 1GB, 2GB, 512MB x64, x72 Green, Yes, n/a 240-pin 1.8V
DDR3 SDRAM 4GB, 2GB, 1GB, 8GB, 16GB x72, x64 Green 240-pin 1.5V, 1.35V
DDR4 SDRAM 8GB, 16GB, 4GB x64, x72 Green 288-pin 1.2V
SDRAM 256MB, 64MB, 128MB x72, x64 Yes 168-pin 3.3V
View Full UDIMM Part Catalog

By Application

Cost Effectiveness

Low Costs

Reap the benefits of cost efficiency while maintaining ECC protection.

Low Latency

Low Latency

Deliver the lowest latency of any modules, ideal for applications where reduced latency is more critical than high capacity.

Density Range

Density Range

Choose from a range of options and get the memory capacity you want.



Accelerate your time to market with a quality module that has been rigorously tested.


Featured Tool

Micron Validated Memory

Title & Description Updated Type
Product Marks/Product and Packaging Labels (pdf) Explains product part marking, and product and packaging labels.
07/2015 Customer Service Note Add Email
Module Part Numbering Systems (pdf) Part numbering guides for Micron DDR4, DDR3, DDR, DDR, and SDRAM modules. 05/2015 Part Numbering Guide Add Email
DRAM Module Quick Reference Guide (pdf) Accelerate your time-to-market with quality DRAM modules rigorously tested for reliability in a wide range of applications--we have the right solution for your design. 02/2015 Product Flyer Add Email
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