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USB Flash Drives

Image Part Number Description / PDF Quantity Rfq
CP7262KGA

CP7262KGA

USB

0
AP16GAH155U

AP16GAH155U

Apacer

USB FLASH DRIVE 16GB USB 2.0/3.0

0
SFU3008GC1AE2TO-I-GE-1A1-STD

SFU3008GC1AE2TO-I-GE-1A1-STD

Swissbit

IND USB FLASH DRIVE U-50N 8 GB M

0
CS2779CF

CS2779CF

USB

0
CS4577AF

CS4577AF

USB

0
CS5761ATT

CS5761ATT

USB

0
USBFTVKEY6A4096N

USBFTVKEY6A4096N

Socapex (Amphenol Pcd)

USB FLASH DRIVE 4GB USB 2.0

0
CP7709DT

CP7709DT

Rochester Electronics

USB

0
CY7C68024-56LTXC

CY7C68024-56LTXC

Rochester Electronics

USB

3279
APHA032GT23EG-6T

APHA032GT23EG-6T

Apacer

USB FLASH DRIVE 32GB SLC USB 2.0

0
AP8GAH325B-1

AP8GAH325B-1

Apacer

USB FLASH DRIVE 8GB USB 2.0

0
APHA008GAG0CG-3TM

APHA008GAG0CG-3TM

Apacer

USB FLASH DRV 8GB MLC USB2.0/3.0

0
AP16GAH330T

AP16GAH330T

Apacer

USB FLASH DRIVE 16GB USB 2.0

0
AP32GAH352B

AP32GAH352B

Apacer

USB FLASH DRIVE 32GB USB 2.0/3.0

0
AP8GAH332B

AP8GAH332B

Apacer

USB FLASH DRIVE 8GB USB 2.0

0
APHA004GT13EG-6T

APHA004GT13EG-6T

Apacer

USB FLASH DRIVE 4GB SLC USB 2.0

0
SFU3032GC2AE2TO-C-LF-1AP-STD

SFU3032GC2AE2TO-C-LF-1AP-STD

Swissbit

USB FLASH DRIVE 32GB U-56N IND

0
CS3885AM

CS3885AM

USB

0
CS5705AA

CS5705AA

USB

0
CP7203BT

CP7203BT

USB

0

USB Flash Drives

1. Overview

Memory cards and USB flash drives are portable semiconductor storage devices utilizing NAND flash memory technology. Memory cards (SD, microSD, CF, etc.) serve as removable storage for compact electronics, while USB flash drives combine flash memory with USB interfaces for plug-and-play data transfer. These devices have become critical components in digital data management, enabling rapid information exchange across consumer electronics, industrial equipment, and enterprise systems.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
SD Card (Secure Digital)Standard size, 4-bit parallel interface, SDXC support up to 2TBDigital cameras, laptops, game consoles
microSD CardSmallest form factor, supports UHS-II with 312MB/s speedsSmartphones, drones, action cameras
CF Card (CompactFlash)IDE/CFast 2.0 interface, durable mechanical designProfessional DSLR cameras, industrial PCs
USB 3.2 Flash DriveBackward compatible, theoretical speeds up to 20GbpsComputer data transfer, OS boot drives
USB-C Flash DriveReversible connector, supports USB Power DeliveryModern smartphones, tablets, MacBooks

3. Structure and Components

Typical components include:

  • Controller Chip: Manages data storage/retrieval, wear leveling, and error correction
  • NAND Flash Memory: Storage medium with MLC/TLC/3D NAND architectures
  • Interface Contacts: Gold-plated USB Type-A/Type-C or SD card connectors
  • Protective Housing: Plastic/metal casing with ESD protection
  • Write Protection Switch: Mechanical lock on SD cards to prevent data modification

4. Key Technical Specifications

ParameterDescriptionImportance
Storage Capacity128MB - 1TB (varies by type)Determines data volume handling capability
Read/Write Speeds10MB/s - 1000MB/s (varies by interface)Affects file transfer efficiency
Interface StandardUSB 3.2 Gen 2x2, UHS-II SD, PCIe NVMeDefines compatibility and bandwidth limits
Durability10,000+ insertion cycles, 10-year data retentionImpacts long-term reliability
Operating Temperature-25 C to +85 C (industrial grade)Critical for harsh environment applications

5. Application Fields

  • Consumer Electronics: Smartphones (microSD), digital cameras (SD), gaming devices
  • Industrial Equipment: CNC machines (CFast), embedded systems (industrial USB drives)
  • Medical Devices: Diagnostic equipment data logging (ruggedized SD cards)
  • Automotive: Dashcams (A1-rated microSD), infotainment systems
  • Enterprise IT: Encrypted USB drives for secure data transport

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
SanDiskExtreme Pro microSDXC170MB/s write speed, 4K video recording
KingstonCanvas React Plus SDXC100MB/s minimum write speed for DSLRs
SamsungBAR Plus USB Flash Drive420MB/s read speed, IP66 waterproof rating
LexarProfessional 1066x CFastCFast 2.0 interface with 533MB/s speed
PNYElite-X Pro USB-C420MB/s transfer rates with USB 3.2 Gen 1

7. Selection Recommendations

Key selection criteria:

  • Match interface type (USB-C/Type-A, SD/microSD) with target device
  • Select speed class (UHS Speed Class 1/3, Video Speed Class) based on usage
  • Consider environmental factors (temperature, shock resistance)
  • Choose appropriate capacity with 20% overhead for system files
  • Verify endurance rating (P/E cycles) for frequent write operations

8. Industry Trend Analysis

Current development trends include:

  • Transition to 3D NAND architecture for higher density (1TB+ microSD)
  • Adoption of NVMe protocol in USB drives (PCIe Gen 4x2 interface)
  • Integration of biometric security features (fingerprint encryption)
  • Emergence of USB4 compatibility with 40Gbps speeds
  • Development of industrial-grade modules with extended temperature ranges (-40 C to +85 C)
  • Growing use of eco-friendly manufacturing processes and recyclable materials
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