PartsTable
Technical Data Sheet
PartsTable / MEMORY / 43X4975
43X4975 ✓ Verified by PartsTable
IBM · 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

IBM 4Gb PC2-3200R 400Mhz ECC REG DR x4 CL3 240-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→ RDIMM→ 43X4975
SPECIFICATIONS
Part Number43X4975
ManufacturerIBM
Capacity4GB
COMPONENT DIAGRAM
ECC 4GB 2Rx4 PC4 — RDIMM IBM NOTCH ~133.35 mm DDR4 RDIMM | 4GB | — | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 43X4975 MFR IBM 4GB —
KEY FEATURES
•
4GB Capacity
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 5
30R5145Compatible
IBM 8Gb PC2-3200R 400Mhz ECC REG DR x4 CL3 240-Pin (2x4Gb) Memory Kit - Option
compatible
30R5146Compatible
IBM 4GB Pc2-3200r 400MHZ ECC Reg Dr X4 Cl3 240-Pin Dimm - Fru
compatible
41Y2815Compatible
IBM 4GB Pc2-3200r 400MHZ ECC Reg Dr X4 Cl3 240-Pin Dimm - Fru
compatible
41Y2857Compatible
IBM 4GB Pc2-3200r 400MHZ ECC Reg Dr X4 Cl3 240-Pin Dimm - Fru
compatible
43X5030Compatible
IBM 4GB Pc2-3200r 400MHZ ECC Reg Dr X4 Cl3 240-Pin Dimm - P/n
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 5
30R5145SUBSTITUTE
IBM 4Gb PC2-3200R 400Mhz ECC REG DR x4 CL3 240-Pin DIMM - P/N
IBM
30R5146SUBSTITUTE
IBM 4Gb PC2-3200R 400Mhz ECC REG DR x4 CL3 240-Pin DIMM - P/N
IBM
41Y2815SUBSTITUTE
IBM 4Gb PC2-3200R 400Mhz ECC REG DR x4 CL3 240-Pin DIMM - P/N
IBM
41Y2857SUBSTITUTE
IBM 4Gb PC2-3200R 400Mhz ECC REG DR x4 CL3 240-Pin DIMM - P/N
IBM
43X5030SUBSTITUTE
IBM 4Gb PC2-3200R 400Mhz ECC REG DR x4 CL3 240-Pin DIMM - P/N
IBM
Ready to buy 43X4975?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 43X4975?
43X4975 is a IBM 4Gb PC2-3200R 400Mhz ECC REG DR x4 CL3 240-Pin DIMM manufactured by IBM. It is classified as a MEMORY (RDIMM).
What parts can replace 43X4975?
There are 5 known substitutes for 43X4975: 30R5145, 30R5146, 41Y2815 and 2 more. Substitute compatibility should be verified for your specific system.
Is 43X4975 still available?
43X4975 is currently Unknown.
Community Feedback
Comments (0)
Loading comments...
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 43X4975

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026