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Technical Data Sheet

P18571-B21 — Storage Datasheet

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· 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 DISK DRIVE UNIT is a the manufacturer hard disk drive designed for enterprise environments demanding consistent performance and data integrity. Key specifications include drive_size: 3.50, design_type: SOLID STATE AND HARD DISK, power_source: EXTERNAL, overall_width: 75.7 MILLIMETERS NOMINAL MM, overall_height: 15.6 MILLIMETERS NOMINAL MM, overall_length: 118.7 MILLIMETERS NOMINAL MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-718-4581, 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 P18571-B21
NSN: 7025-01-718-4581
FSC: 7025
CAGE: 1MVG3 — HPE GOVERNMENT, LLC (USA)
SPECIFICATIONS
drive_size3.50
design_typeSOLID STATE AND HARD DISK
power_sourceEXTERNAL
overall_width75.7 MILLIMETERS NOMINAL MM
overall_height15.6 MILLIMETERS NOMINAL MM
overall_length118.7 MILLIMETERS NOMINAL MM
data_storage_capacity3.84 TERABYTES
unpackaged_unit_weight0.5 KILOGRAMS KG
transfer_rate_in_megabytes_per_second600.0
part_name_assigned_by_controlling_agencySERVER HARDDISK
NSN7025-01-718-4581
COMPONENT DIAGRAM
RELEASE LATCH NL-SAS 7.2K P18571-B21 OEM NL-SAS INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | — | 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 P18571-B21 MFR OEM
KEY FEATURES
DATA STORAGE CAPACITY: 3.84 TERABYTES
TRANSFER RATE IN MEGABYTES PER SECOND: 600.0
DRIVE SIZE: 3.50
POWER SOURCE: EXTERNAL
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)
PART NAME ASSIGNED BY CONTROLLING AGENCYSERVER HARDDISK
DATA STORAGE CAPACITY3.84 TERABYTES
TRANSFER RATE IN MEGABYTES PER SECOND600.0
OVERALL WIDTH75.7 MILLIMETERS NOMINAL MM
OVERALL LENGTH118.7 MILLIMETERS NOMINAL MM
DRIVE SIZE3.50
POWER SOURCEEXTERNAL
OVERALL HEIGHT15.6 MILLIMETERS NOMINAL MM
DESIGN TYPESOLID STATE AND HARD DISK
UNPACKAGED UNIT WEIGHT0.5 KILOGRAMS KG
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
0749295Same_fsc
same_fsc cross-reference
same_fsc
0475711Same_fsc
same_fsc cross-reference
same_fsc
475711Same_fsc
same_fsc cross-reference
same_fsc
836973Same_fsc
same_fsc cross-reference
same_fsc
876432-B21Compatible
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD
compatible
875355-001Compatible
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 7
875355-001SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD for DX Servers
HPE
876432-B21SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD for DX Servers
HPE
877766-B21SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD for DX Servers
HPE
878856-001SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD for DX Servers
HPE
P18573-B21SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD for DX Servers
HPE
P18633-001SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD for DX Servers
HPE
P18634-001SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD for DX Servers
HPE
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FREQUENTLY ASKED QUESTIONS
What is P18571-B21?
P18571-B21 is a DISK DRIVE UNIT. It is classified as a STORAGE_HDD (3.5_SATA_HDD).
What parts can replace P18571-B21?
There are 16 known substitutes for P18571-B21: 0749295, 0475711, 475711 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P18571-B21?
P18571-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-718-4581. This indicates validated use in U.S. government and defense supply chains.
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