Micron Memory Part Number Decoder [top] Online

| Code | DDR4 Speed | Description | |------|------------|-------------| | -2E | DDR4-2400 | 17-17-17 | | -2G | DDR4-2666 | 19-19-19 | | -3G2 | DDR4-3200 | 22-22-22 | | -062E | DDR4-3200 (different tCK) | Alternative | | For DDR5: | | | | -40B | DDR5-4800 | 40-40-40 | | -5G2 | DDR5-5200 | 42-42-42 | | -6G2 | DDR5-5600 | 46-46-46 | | -8G2 | DDR5-6400 | 52-52-52 |

This article serves as a complete —breaking down every segment of the code for DRAM modules, discrete DRAM components, and solid-state drives. Why You Need to Decode Micron Part Numbers Before diving into the syntax, understand the stakes. Two memory modules can look identical physically but have entirely different electrical characteristics. For example, a Micron module labeled MTA18ADF2G72AZ is a 16GB DDR4 ECC registered DIMM. Change one character— MTA18ASF2G72AZ —and it becomes a non-ECC unbuffered DIMM. Plugging the wrong one into a server motherboard might prevent POST (Power-On Self-Test). micron memory part number decoder

If you work in IT procurement, system building, or hardware repair, you have likely stared at a string of alphanumeric characters on a RAM stick and wondered what it all means. Micron Technology—parent company of the consumer-facing brand Crucial—is one of the world’s largest manufacturers of DRAM, NAND, and SSD storage. Their part numbering system is complex but incredibly logical. | Code | DDR4 Speed | Description |

For the latest parts (DDR5, LPDDR5X, CXL memory modules), the same principles apply—only the speed codes and voltage letters will evolve. Bookmark this article and come back whenever you encounter a mysterious string of characters on a stick of RAM. Have a Micron part number you can’t crack? Leave it in the comments (if on a blog platform) or cross-reference with the tables above. When in doubt, request the full datasheet from Micron’s website—it contains the official decoder legend. For example, a Micron module labeled MTA18ADF2G72AZ is