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PartsTable / MEMORY / 01KR359
01KR359 ✓ Verified by PartsTable
LENOVO · MEMORY · UDIMM
WHAT YOU NEED TO KNOW
Memory is a hot market right now. DDR5 and DDR4 are extremely volatile with data centers driving availability to extreme lows. Always validate machine type and model. Remember: all RAM is Hynix, Samsung, or Micron underneath OEM labels — use that to find alternatives. Key checks: Check OEM alternatives — all RAM is Hynix/Samsung/Micron underneath. Double-check what you're quoting in volatile market.
HOT market — DDR5/DDR4 extremely volatile
PRODUCT OVERVIEW

Lenovo ThinkSystem 8GB TruDDR4 2666 MHz (1Rx8, 1.2V) UDIMM. Key specifications include ECC: Yes, Component for: PC/Server, Memory voltage: 1.2 V, Internal memory: 8 GB, Memory clock speed: 2666 MHz, Memory form factor: 288-pin DIMM. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MEMORY→ UDIMM→ 01KR359
SPECIFICATIONS
ECCYes
Component forPC/Server
Memory voltage1.2 V
Internal memory8 GB
Memory clock speed2666 MHz
Memory form factor288-pin DIMM
Compatible productsThinkSystem ST50
Buffered memory typeUnregistered (unbuffered)
Internal memory typeDDR4
Harmonized System (HS) code84733020
Memory layout (modules x size)1 x 8 GB
COMPONENT DIAGRAM
ECC 8GB 2Rx4 PC4 2666MHz UDIMM LENOV NOTCH ~133.35 mm DDR4 UDIMM | 8GB | 2666MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 UDIMM PN 01KR359 MFR LENOVO 8GB 2666MHz
KEY FEATURES
•
Up to 8 GB
•
DDR4 Interface
•
8GB Capacity
•
2666MHz Speed
TYPICAL APPLICATIONS
  • Server memory expansion for virtualization workloads
  • Database performance optimization (in-memory computing)
  • VDI and remote desktop session hosting
  • High-performance computing (HPC) clusters
  • Mail server and collaboration platform scaling
  • Application server tier expansion
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
4ZC7A08696Compatible
IBM 8Gb PC4-2666V-E ECC UB SR x8 (1x8Gb) Memory Kit for ThinkSystem - Option
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 1
4ZC7A08696SUBSTITUTE
IBM 8Gb PC4-2666V-E ECC UB SR x8 (1x8Gb) Memory Kit for ThinkSystem - FRU
LENOVO
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FREQUENTLY ASKED QUESTIONS
What is 01KR359?
01KR359 is a Lenovo ThinkSystem 8GB TruDDR4 2666 MHz (1Rx8, 1.2V) UDIMM manufactured by LENOVO. It is classified as a MEMORY (UDIMM).
What parts can replace 01KR359?
There is 1 known substitute for 01KR359: 4ZC7A08696. Substitute compatibility should be verified for your specific system.
Is 01KR359 still available?
01KR359 is currently Unknown.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026