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P11443-191 — Memory Specs & Substitutes

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Micron · MEMORY · RDIMM
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

The P11443-191 is a Micron industrial component. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MEMORY→ RDIMM→ P11443-191
SPECIFICATIONS
Part NumberP11443-191
ManufacturerMicron
COMPONENT DIAGRAM
ECC — 2Rx4 PC4 — RDIMM Micro 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 P11443-191 MFR Micron — —
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
P07642-B21Compatible
HP 16GB Pc4-3200AA-R ECC Reg Dr X8 Cas-22 Dimm - AMD - G10
compatible
P20501-001Compatible
HP 16GB Pc4-3200AA-R ECC Reg Dr X8 Cas-22 Dimm - AMD - G10
compatible
P07642-H21Compatible
HP 16GB Pc4-3200AA-R ECC Reg Dr X8 Cas-22 Dimm - AMD - G10
compatible
P07642-K21Compatible
HP 16GB Pc4-3200AA-R ECC Reg Dr X8 Cas-22 Dimm - AMD - G10
compatible
P07642-X21Compatible
HP 16GB Pc4-3200AA-R ECC Reg Dr X8 Cas-22 Dimm - AMD - G10
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 5
P07642-B21SUBSTITUTE
HP 16Gb PC4-3200AA-R ECC REG DR x8 CAS-22 DIMM - AMD - G10
HPE
P07642-H21SUBSTITUTE
HP 16Gb PC4-3200AA-R ECC REG DR x8 CAS-22 DIMM - AMD - G10
HPE
P07642-K21SUBSTITUTE
HP 16Gb PC4-3200AA-R ECC REG DR x8 CAS-22 DIMM - AMD - G10
HPE
P07642-X21SUBSTITUTE
HP 16Gb PC4-3200AA-R ECC REG DR x8 CAS-22 DIMM - AMD - G10
HPE
P20501-001SUBSTITUTE
HP 16Gb PC4-3200AA-R ECC REG DR x8 CAS-22 DIMM - AMD - G10
HPE
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FREQUENTLY ASKED QUESTIONS
What is P11443-191?
P11443-191 is a P11443-191 manufactured by Micron. It is classified as a MEMORY (RDIMM).
What parts can replace P11443-191?
There are 5 known substitutes for P11443-191: P07642-B21, P20501-001, P07642-H21 and 2 more. Substitute compatibility should be verified for your specific system.
Is P11443-191 still available?
P11443-191 is currently Unknown.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: August 2026