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40K6819 ✓ Verified by PartsTable
IBM · STORAGE_HDD · 3.5_SATA_HDD
WHAT YOU NEED TO KNOW
SAS backplane supports SATA, not vice versa NL-SAS = SAS protocol at nearline (7.2K) speed — NOT SATA
Gen8 LFF tray ≠ Gen10 tray — different screw holes
PRODUCT OVERVIEW
IBM 73.4GB 15K 4GBPS FC HOT-SWAP 3.5 HDD

IBM 73.4GB 15K 4GBPS FC HOT-SWAP 3.5 HDD. The unit ships in a LFF 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
STORAGE_HDD→ 3.5_SATA_HDD→ LFF BAY→ 40K6819
SPECIFICATIONS
Part Number40K6819
ManufacturerIBM
Form FactorLFF
Capacity73.4GB
Speed15K RPM
COMPONENT DIAGRAM
RELEASE LATCH 73.4GB NL-SAS 15K RPM 40K6819 IBM NL-SAS INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | 73.4GB | NL-SAS 15K RPM NL-SAS uses SAS protocol at 7.2K RPM | SAS backplane supports SATA, not reverse Tray generation matters | Gen8 LFF tray differs from Gen10 TITLE LFF 3.5" DRIVE PN 40K6819 MFR IBM
KEY FEATURES
•
LFF Form Factor
•
73.4GB Capacity
•
15K RPM Speed
TYPICAL APPLICATIONS
  • Data center top-of-rack switching
  • High-speed server interconnects (10G/25G/40G/100G)
  • Storage network fabric (iSCSI, FCoE)
  • Campus and branch network infrastructure
  • Firewall and security appliance connectivity
  • WAN edge and SD-WAN deployments
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
40K6816Compatible
IBM 72Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - Option
compatible
23R1771Compatible
IBM 72GB FC 4GB 15k LFF HDD for Ds4700/exp810 - P/n
compatible
40K6853Compatible
IBM 72GB FC 4GB 15k LFF HDD for Ds4700/exp810 - P/n
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 7
23R1771SUBSTITUTE
IBM 72Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - FRU
IBM
40K6804SUBSTITUTE
IBM 72Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - FRU
IBM
40K6807SUBSTITUTE
IBM 72Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - FRU
IBM
40K6816SUBSTITUTE
IBM 72Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - FRU
IBM
40K6841SUBSTITUTE
IBM 72Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - FRU
IBM
40K6853SUBSTITUTE
IBM 72Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - FRU
IBM
42D0372SUBSTITUTE
IBM 72Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - FRU
IBM
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FREQUENTLY ASKED QUESTIONS
What is 40K6819?
40K6819 is a IBM 73.4GB 15k 4gbps FC Hot-Swap 3.5 HDD manufactured by IBM. It is classified as a STORAGE_HDD (3.5_SATA_HDD).
What parts can replace 40K6819?
There are 3 known substitutes for 40K6819: 40K6816, 23R1771, 40K6853. Substitute compatibility should be verified for your specific system.
Is 40K6819 still available?
40K6819 is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026