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Technical Data Sheet
PartsTable / STORAGE_HDD / R101A
R101A ✓ Verified by PartsTable
— · 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

The 3TB Hot-Swap HDD f px12-350r is a the manufacturer hard disk drive designed for enterprise environments demanding consistent performance and data integrity. Key specifications include end_item_identification: ACFT ENG R2800. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-00-570-2780, indicating validated use in U.S.

government and defense logistics supply chains. 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→ R101A
NSN: 3040-00-570-2780
FSC: 3040
CAGE: 66346 — MINNESOTA MINING AND MFG CO BROADCASTING AND RELATED PRODUCTS DIV
SPECIFICATIONS
end_item_identificationACFT ENG R2800
NSN3040-00-570-2780
COMPONENT DIAGRAM
RELEASE LATCH 3TB NL-SAS 7.2K R101A OEM NL-SAS INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | 3TB | NL-SAS 7.2K 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 R101A MFR OEM
KEY FEATURES
•
3TB Capacity
TYPICAL APPLICATIONS
  • Enterprise storage arrays and SANs
  • Direct-attached storage (DAS) expansion
  • Database tier storage (OLTP, OLAP)
  • Virtual machine datastore expansion
  • Backup-to-disk and disaster recovery targets
  • Content delivery and media streaming storage
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONACFT ENG R2800
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
35755Interchangeable
3TB Hot-Swap HDD f px12-350r
interchangeable
D35755Interchangeable
interchangeable cross-reference
interchangeable
831-4-5Interchangeable
interchangeable cross-reference
interchangeable
154127Interchangeable
interchangeable cross-reference
interchangeable
867819Interchangeable
interchangeable cross-reference
interchangeable
575-6504-1753957PC6Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R101A?
R101A is a 3TB Hot-Swap HDD f px12-350r. It is classified as a STORAGE_HDD (3.5_SATA_HDD).
What parts can replace R101A?
There are 10 known substitutes for R101A: 35755, D35755, 831-4-5 and 7 more. Substitute compatibility should be verified for your specific system.
Is R101A still available?
R101A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026