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Technical Data Sheet

AEM-1A/TTDR — DISK DRIVE UNIT

✓ Government record, cited
— · STORAGE_HDD · 3.5_SATA_HDD
PRODUCT OVERVIEW

AEM-1A/TTDR: DISK DRIVE UNIT.

The DISK DRIVE UNIT is a the manufacturer hard disk drive designed for enterprise environments demanding consistent performance and data integrity. Key specifications include unit_design: DESK TOP, interface_type: DB9 AND RS 232C AND SCSI, data_storage_capacity: 4.20 GIGABYTES, access_time_in_milliseconds: 28.0, transfer_rate_in_megabytes_per_second: 24.0. This part is cataloged in the U.S.

Government catalog under NSN 7025-01-478-7033, 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→ AEM-1A/TTDR
NSN: 7025-01-478-7033
FSC: 7025 — Information Technology Input/output and Storage Devices
CAGE: 09DC0 — ARRAID, INC. (USA)
SPECIFICATIONS
unit_designDESK TOP
drive_quantity2
interface_typeDB9 AND RS 232C AND SCSI
data_storage_capacity4.20 GIGABYTES
access_time_in_milliseconds28.0
transfer_rate_in_megabytes_per_second24.0
NSN7025-01-478-7033
COMPONENT DIAGRAM
RELEASE LATCH — NL-SAS 7.2K AEM-1A/TTDR 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 AEM-1A/TTDR MFR OEM
KEY FEATURES
•
ACCESS TIME IN MILLISECONDS: 28.0
•
INTERFACE TYPE: DB9 AND RS 232C AND SCSI
•
TRANSFER RATE IN MEGABYTES PER SECOND: 24.0
•
DRIVE QUANTITY: 2
•
DATA STORAGE CAPACITY: 4.20 GIGABYTES
•
UNIT DESIGN: DESK TOP
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
ACCESS TIME IN MILLISECONDS28.0
INTERFACE TYPEDB9 AND RS 232C AND SCSI
TRANSFER RATE IN MEGABYTES PER SECOND24.0
DRIVE QUANTITY2
DATA STORAGE CAPACITY4.20 GIGABYTES
UNIT DESIGNDESK TOP
OTHER ITEMS IN FSC 7025 — Information Technology Input/output and Storage Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
7025-00-001-2681 7025-00-001-5588 7025-00-001-6998 7025-00-001-6999 7025-00-001-7000 7025-00-001-7025 7025-00-001-7026 7025-00-001-7027
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AEM-1A/TTDR?
AEM-1A/TTDR is a DISK DRIVE UNIT. It is classified as a STORAGE_HDD (3.5_SATA_HDD).
What is the NSN for AEM-1A/TTDR?
AEM-1A/TTDR is cataloged in the U.S. Government catalog under NSN 7025-01-478-7033. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.