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USB Flash Drives

Image Part Number Description / PDF Quantity Rfq
AP64GAH353C

AP64GAH353C

Apacer

USB FLASH DRIVE 64GB USB 2.0

0
AP16GAH352B

AP16GAH352B

Apacer

USB FLASH DRIVE 16GB USB 2.0/3.0

0
APHA004GT13EG-CM

APHA004GT13EG-CM

Apacer

USB FLASH DRIVE 4GB MLC USB 2.0

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APHA256MR23CG-6T

APHA256MR23CG-6T

Apacer

USB FLASH DRV 256MB SLC USB 2.0

0
AP8GAH155U

AP8GAH155U

Apacer

USB FLASH DRIVE 8GB USB 2.0/3.0

0
AP4GAH325B-1

AP4GAH325B-1

Apacer

USB FLASH DRIVE 4GB USB 2.0

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AP4GAH326W-1

AP4GAH326W-1

Apacer

USB FLASH DRIVE 4GB USB 2.0

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AP16GAH121C

AP16GAH121C

Apacer

USB FLASH DRIVE 16GB USB 2.0

0
AP64GAH325B

AP64GAH325B

Apacer

USB FLASH DRIVE 64GB USB 2.0

0
AP64GAH352B-1

AP64GAH352B-1

Apacer

USB FLASH DRIVE 64GB USB 2.0/3.0

0
APHA016GAK0CG-3TM

APHA016GAK0CG-3TM

Apacer

USB FLASH DRIVE 16GB MLC 2.0/3.0

0
AP8GAH326B

AP8GAH326B

Apacer

USB FLASH DRIVE 8GB USB 2.0

0
APHA016GT13EG-6T

APHA016GT13EG-6T

Apacer

USB FLASH DRIVE 16GB SLC USB 2.0

0
APHA032GAK0EG-3TM

APHA032GAK0EG-3TM

Apacer

USB FLASH DRIVE 32GB MLC 2.0/3.0

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AP8GAH325B

AP8GAH325B

Apacer

USB FLASH DRIVE 8GB USB 2.0

0
AP128GAH350B

AP128GAH350B

Apacer

USB FLASH DRV 128GB USB 2.0/3.0

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APHA008GT13EG-CM

APHA008GT13EG-CM

Apacer

USB FLASH DRIVE 8GB MLC USB 2.0

0
AP32GAH358W

AP32GAH358W

Apacer

USB FLASH DRIVE 32GB USB 2.0/3.0

0
AH64GAH325B-1

AH64GAH325B-1

Apacer

USB FLASH DRIVE 64GB USB 2.0

0
AP64GAH112R

AP64GAH112R

Apacer

USB FLASH DRIVE 64GB USB 2.0

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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