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03X4443 — Storage Datasheet

LENOVO · 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 RAID 9280-8e SAS/SATA 512Mb Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI Controller for ThinkServer - Option. 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→ 03X4443
SPECIFICATIONS
Part Number03X4443
ManufacturerLENOVO
Form FactorSFF
Capacity512MB
FITS THESE MACHINES
Lenovo ThinkServer RD340
Lenovo ThinkServer RD440
Lenovo ThinkServer RD540
Lenovo ThinkServer RD640
Lenovo ThinkServer RS140
Lenovo ThinkServer TD340
Lenovo ThinkServer TS440
COMPONENT DIAGRAM
LATCH 512MB SAS — 03X4443 SAS CONN WITH TRAY — HOT-PLUG READY Tray: See server gen 512MB SAS — 03X4443 BARE DRIVE — NO LATCH Needs caddy/tray to install 2.5" (70 x 100mm) SFF 2.5" DRIVE | 512MB | SAS — Always ask: "Does it come with tray/caddy?" | Tray PN varies by server generation TITLE SFF 2.5" DRIVE PN 03X4443 CAP 512MB SAS
KEY FEATURES
•
SFF Form Factor
•
512MB Capacity
TYPICAL APPLICATIONS
  • Hardware RAID acceleration for enterprise storage
  • Data protection and parity management
  • Cache-backed write acceleration
  • Storage tiering and SSD caching
SUBSTITUTES & CROSS-REFERENCES 1
4XB0F28645CompatiblePARTNER
IBM SAS 6G RAID 9280-8e SAS/SATA 512Mb Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI Controller for ThinkServer - Option
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 1
4XB0F28645SUBSTITUTE
IBM SAS 6G RAID 9280-8e SAS/SATA 512Mb Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI Controller for ThinkServer - FRU
LENOVO
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FREQUENTLY ASKED QUESTIONS
What is 03X4443?
03X4443 is a IBM SAS 6G RAID 9280-8e SAS/SATA 512Mb Cache 2-Port EXT SFF-8088 PCI-E-2.0x8 LSI Controller for ThinkServer - Option manufactured by LENOVO.
What parts can replace 03X4443?
There is 1 known substitute for 03X4443: 4XB0F28645. Substitute compatibility should be verified for your specific system.
Is 03X4443 still available?
03X4443 is currently Unknown.
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PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.