SFD-321B — Network Technical Data

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Samsung · MRO · MRO_GENERAL

WHAT YOU NEED TO KNOW

RJ45 = copper (needs CAT6) | SFP+ = fiber (needs transceiver) FLR = FlexibleLOM (HPE integrated) — NOT standard PCIe

Bracket height MUST match chassis — Full Height (2U) vs Low Profile (1U)

PRODUCT OVERVIEW

Type：Internal FDD 3.5" Media Capacity：Formatted 1.44MB Disk Rotational Speed：300rpm DC Power Supply：5V Reliability(MTBF)：30,000Hours Weight：460g Max Port：ATAPI Safety Approvals：UL,CSA, FCC,TUV,CE,MIC,C-TICK This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-505-3299, 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

MRO→ MRO_GENERAL→ SFD-321B

NSN: 7025-01-505-3299
FSC: 7025
CAGE: 0H108 — SAMSUNG AMERICA INC (USA)

SPECIFICATIONS

drive_size	3.50
design_type	FLEXIBLE DISK
unit_design	INTERNAL
power_source	EXTERNAL
overall_width	101.6 MILLIMETERS NOMINAL MM
drive_quantity	1
overall_height	25.4 MILLIMETERS NOMINAL MM
overall_length	145.0 MILLIMETERS NOMINAL MM
data_storage_capacity	1.50 MEGABYTES
end_item_identification	SNAP III
access_time_in_milliseconds	3.0
voltage_in_volts_and_current_type	5.0 DC
NSN	7025-01-505-3299

COMPONENT DIAGRAM

KEY FEATURES

•

VOLTAGE IN VOLTS AND CURRENT TYPE: 5.0 DC

•

ACCESS TIME IN MILLISECONDS: 3.0

•

DRIVE QUANTITY: 1

•

DATA STORAGE CAPACITY: 1.50 MEGABYTES

•

DESIGN TYPE: FLEXIBLE DISK

TECHNICAL CHARACTERISTICS (FLIS)

OVERALL HEIGHT	25.4 MILLIMETERS NOMINAL MM
OVERALL LENGTH	145.0 MILLIMETERS NOMINAL MM
END ITEM IDENTIFICATION	SNAP III
VOLTAGE IN VOLTS AND CURRENT TYPE	5.0 DC
ACCESS TIME IN MILLISECONDS	3.0
DRIVE QUANTITY	1
DATA STORAGE CAPACITY	1.50 MEGABYTES
DESIGN TYPE	FLEXIBLE DISK
TRANSFER RATE IN MEGABYTES PER SECOND	0.4
POWER SOURCE	EXTERNAL

VERIFIED SUBSTITUTES & CROSS-REFERENCES 1

176137-F30Interchangeable

Same NIIN cross-reference

interchangeable

LIFECYCLE

StatusACTIVE

AvailabilityOEM and secondary market

RoHS CompliantEAR99ESD SensitiveNot HAZMATSourcing: other

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FREQUENTLY ASKED QUESTIONS

What is SFD-321B?

SFD-321B is a Samsung SFD-321B/LFBL1 manufactured by Samsung. It is classified as a MRO (MRO_GENERAL).

What parts can replace SFD-321B?

There is 1 known substitute for SFD-321B: 176137-F30. Substitute compatibility should be verified for your specific system.

What is the NSN for SFD-321B?

SFD-321B is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-505-3299. This indicates validated use in U.S. government and defense supply chains.

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