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46M0866 ✓ Verified by PartsTable
IBM · CONTROLLER · RAID_HBA
WHAT YOU NEED TO KNOW
RAID HBAs — always confirm bracket height (full or half). Ship unlocked with test reports. Our edge: we can verify specific firmware versions. Key checks: Ship with test reports. Ship UNLOCKED.
Firmware must match server
PRODUCT OVERVIEW

The IBM ServeRAID-MR10i adapter is a IBM 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
CONTROLLER→ RAID_HBA→ 46M0866
SPECIFICATIONS
Part Number46M0866
ManufacturerIBM
COMPONENT DIAGRAM
RAID ASIC CACHE FBWC SAS 0 SAS 1 SAS 2 SAS 3 BATT EXT 0 EXT 1 PCIe x8 ~187 mm STORAGE CONTROLLER | RAID 0,1,5,6,10 | PCIe SAS/SATA | FBWC cache | Battery backup connector | TITLE RAID CTRL PN 46M0866 MFR IBM IBM ServeRAID-MR10i adapter
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
43W4296Compatible
IBM SAS 3G ServeRAID MR10i 256Mb Cache 2-Port INT SFF-8087 PCI-E x8 LSI 1078e Controller no Battery - Option
compatible
43W4297Compatible
IBM SAS 3G ServeRAID MR10i 256Mb Cache 2-Port INT SFF-8087 PCI-E x8 LSI 1078e Controller - FRU
compatible
43W4298Compatible
IBM SAS 3G ServeRAID MR10i 256Mb Cache 2-Port INT SFF-8087 PCI-E x8 LSI 1078e Controller no Battery - SBB
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
43W4296SUBSTITUTE
IBM SAS 3G ServeRAID MR10i 256Mb Cache 2-Port INT SFF-8087 PCI-E x8 LSI 1078e Controller - P/N
IBM
43W4297SUBSTITUTE
IBM SAS 3G ServeRAID MR10i 256Mb Cache 2-Port INT SFF-8087 PCI-E x8 LSI 1078e Controller - P/N
IBM
43W4298SUBSTITUTE
IBM SAS 3G ServeRAID MR10i 256Mb Cache 2-Port INT SFF-8087 PCI-E x8 LSI 1078e Controller - P/N
IBM
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FREQUENTLY ASKED QUESTIONS
What is 46M0866?
46M0866 is a IBM ServeRAID-MR10i adapter manufactured by IBM. It is classified as a CONTROLLER (RAID_HBA).
What parts can replace 46M0866?
There are 3 known substitutes for 46M0866: 43W4296, 43W4297, 43W4298. Substitute compatibility should be verified for your specific system.
Is 46M0866 still available?
46M0866 is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026