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40K6820 — Storage Datasheet

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IBM · DRIVE LFF
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 146Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - P/N. 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
LFF BAY→ 40K6820
SPECIFICATIONS
Part Number40K6820
ManufacturerIBM
Form FactorLFF
InterfaceFC 4Gb
Capacity146GB
Speed15K RPM
COMPONENT DIAGRAM
RELEASE LATCH 146GB FC 4Gb 15K RPM 40K6820 IBM FC 4Gb INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | 146GB | FC 4Gb 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 40K6820 MFR IBM
KEY FEATURES
•
LFF Form Factor
•
FC 4Gb Interface
•
146GB 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
23R1776Compatible
IBM 146GB FC 4GB 15k LFF HDD for Ds4700/exp810 - P/n
compatible
40K6823Compatible
IBM 146GB FC 4GB 15k LFF HDD for Ds4700/exp810 - Fru
compatible
40K6857Compatible
IBM 146GB FC 4GB 15k LFF HDD for Ds4700/exp810 - P/n
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 8
23R0454SUBSTITUTE
IBM 146Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - Option
IBM
23R1776SUBSTITUTE
IBM 146Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - Option
IBM
40K6808SUBSTITUTE
IBM 146Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - Option
IBM
40K6811SUBSTITUTE
IBM 146Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - Option
IBM
40K6823SUBSTITUTE
IBM 146Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - Option
IBM
40K6845SUBSTITUTE
IBM 146Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - Option
IBM
40K6857SUBSTITUTE
IBM 146Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - Option
IBM
42D0373SUBSTITUTE
IBM 146Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - Option
IBM
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FREQUENTLY ASKED QUESTIONS
What is 40K6820?
40K6820 is a IBM 146Gb FC 4Gb 15K LFF HDD for DS4700/EXP810 - P/N manufactured by IBM.
What parts can replace 40K6820?
There are 3 known substitutes for 40K6820: 23R1776, 40K6823, 40K6857. Substitute compatibility should be verified for your specific system.
Is 40K6820 still available?
40K6820 is currently Unknown.
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PartsTable Design LLC · partstable.com
Last verified: September 2026