46C8991 — Storage Datasheet
IBM · DRIVE SFF
WHAT YOU NEED TO KNOW
SAS backplane accepts SATA drives (not vice versa) Buy with tray when possible — saves cost vs separate tray
ALWAYS ASK: "Does it come with tray/caddy?"
PRODUCT OVERVIEW
IBM SAS 6G ServeRAID M5120 Zero Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI SAS2208 Controller - SBB. The unit ships in a SFF form factor suitable for standard rack-mount installations. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
WHERE IT FITS
SFF BAY →
46C8991
SPECIFICATIONS
Part Number 46C8991 Manufacturer IBM Form Factor SFF
COMPONENT DIAGRAM
LATCH
—
SAS —
46C8991
SAS CONN
WITH TRAY — HOT-PLUG READY
Tray: See server gen
—
SAS —
46C8991
BARE DRIVE — NO LATCH
Needs caddy/tray to install
2.5" (70 x 100mm)
SFF 2.5" DRIVE | — | SAS —
Always ask: "Does it come with tray/caddy?" | Tray PN varies by server generation
TITLE
SFF 2.5" DRIVE
PN
46C8991
CAP
— SAS
SUBSTITUTES & CROSS-REFERENCES 4
81Y4478 Compatible PARTNER IBM SAS 6G ServeRAID M5120 Zero Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI SAS2208 Controller - Option
compatible
00AE811 Compatible PARTNER IBM SAS 6G ServeRAID M5120 Zero Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI SAS2208 Controller - FRU
compatible
81Y4479 Compatible PARTNER IBM SAS 6G ServeRAID M5120 Zero Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI SAS2208 Controller - FRU
compatible
81Y4480 Compatible PARTNER IBM SAS 6G ServeRAID M5120 Zero Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI SAS2208 Controller - SBB
compatible
LIFECYCLE
No lifecycle data available.
THIS PART SUBSTITUTES FOR 4
00AE811 SUBSTITUTE IBM SAS 6G ServeRAID M5120 Zero Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI SAS2208 Controller - FRU
IBM
81Y4478 SUBSTITUTE IBM SAS 6G ServeRAID M5120 Zero Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI SAS2208 Controller - FRU
IBM
81Y4479 SUBSTITUTE IBM SAS 6G ServeRAID M5120 Zero Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI SAS2208 Controller - FRU
IBM
81Y4480 SUBSTITUTE IBM SAS 6G ServeRAID M5120 Zero Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI SAS2208 Controller - FRU
IBM
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FREQUENTLY ASKED QUESTIONS
What is 46C8991?
46C8991 is a IBM SAS 6G ServeRAID M5120 Zero Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI SAS2208 Controller - SBB manufactured by IBM.
What parts can replace 46C8991?
There are 4 known substitutes for 46C8991: 81Y4478, 00AE811, 81Y4479 and 1 more. Substitute compatibility should be verified for your specific system.
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