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4ZC7A08699 ✓ Verified by PartsTable
IBM · 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 16GB TruDDR4 2666MHz (2Rx8, 1.2V) UDIMM

The ST50 server supports Lenovo TruDDR4 memory. TruDDR4 memory uses the highest-quality components sourced from Tier 1 DRAM suppliers and only memory that meets strict requirements is selected. It is compatibility-tested and tuned to maximize performance and reliability.

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→ 4ZC7A08699
SPECIFICATIONS
ECCYes
Component forPC/Server
Memory voltage1.2 V
Internal memory16 GB
Memory clock speed2666 MHz
Memory form factor288-pin DIMM
Compatible productsThinkSystem ST50
Buffered memory typeUnregistered (unbuffered)
Internal memory typeDDR4
Harmonized System (HS) code84733020
COMPONENT DIAGRAM
ECC — 2Rx4 PC4 — RDIMM IBM NOTCH ~133.35 mm DDR4 RDIMM | — | — | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 4ZC7A08699 MFR IBM — —
KEY FEATURES
•
Up to 16 GB
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
01KR360Compatible
IBM 16Gb PC4-2666V-E ECC UB DR x8 DIMM for ThinkSystem - FRU
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 1
01KR360SUBSTITUTE
IBM 16Gb PC4-2666V-E ECC UB DR x8 (1x16Gb) Memory Kit for ThinkSystem - Option
LENOVO
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FREQUENTLY ASKED QUESTIONS
What is 4ZC7A08699?
4ZC7A08699 is a 4zc7a08699 manufactured by IBM. It is classified as a MEMORY (UDIMM).
What parts can replace 4ZC7A08699?
There is 1 known substitute for 4ZC7A08699: 01KR360. Substitute compatibility should be verified for your specific system.
Is 4ZC7A08699 still available?
4ZC7A08699 is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026