USB Flash Drives

Part Number	Description / PDF	Quantity
SFU24096E3BP2TO-C-DT-121-STD Swissbit	USB FLASH DRIVE 4GB SLC USB 2.0	0
APHA004GR13CG-CM Apacer	USB FLASH DRIVE 4GB MLC USB 2.0	0
AP16GAH356B Apacer	USB FLASH DRIVE 16GB USB 3.0	860
APHA001GAG0EG-2T Apacer	USB FLASH DRV 1GB SLC USB2.0/3.0	0
APHA001GAG0CG-2T Apacer	USB FLASH DRV 1GB SLC USB2.0/3.0	0
AP32GAH356B Apacer	FLASH DRIVE USB 3.0 32GB	0
SFU21024E3BP2TO-C-MS-121-STD Swissbit	USB FLASH DRIVE 1GB SLC USB 2.0	0
FUUP256G-U3F Flexxon	USB PEN DRIVE 3.0 256GB	0
AF1GUFNDNC(I)-OEM ATP Electronics, Inc.	USB FLASH DRIVE 1GB SLC USB 2.0	0
CP3981AM	USB	0
CY7C68013A-56LTXCKM	USB	1307
AF4GUFNDNC(I)-OEM ATP Electronics, Inc.	USB FLASH DRIVE 4GB SLC USB 2.0	0
APHA512MAG0CG-2T Apacer	USB FLASH DRV 512MB SLC 2.0/3.0	0
AF512UFNDNC(I)-OEM ATP Electronics, Inc.	USB FLASH DRV 512MB SLC USB 2.0	0
SFU22048E3BP2TO-I-MS-121-STD Swissbit	USB FLASH DRIVE 2GB SLC USB 2.0	13
APHA008GR13CG-CM Apacer	USB FLASH DRIVE 8GB MLC USB 2.0	0
CY7C68320C-100AXCKJ Rochester Electronics	USB	114
SFU21024E3BP2TO-I-MS-121-STD Swissbit	USB FLASH DRIVE 1GB SLC USB 2.0	0
VNFUSB3064GCC5WT3 Viking Technology	64GB USB3.0 USB STICK	11
SFU20512E3BP2TO-C-MS-121-STD Swissbit	USB FLASH DRV 512MB SLC 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

Type	Functional Features	Application Examples
SD Card (Secure Digital)	Standard size, 4-bit parallel interface, SDXC support up to 2TB	Digital cameras, laptops, game consoles
microSD Card	Smallest form factor, supports UHS-II with 312MB/s speeds	Smartphones, drones, action cameras
CF Card (CompactFlash)	IDE/CFast 2.0 interface, durable mechanical design	Professional DSLR cameras, industrial PCs
USB 3.2 Flash Drive	Backward compatible, theoretical speeds up to 20Gbps	Computer data transfer, OS boot drives
USB-C Flash Drive	Reversible connector, supports USB Power Delivery	Modern 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

Parameter	Description	Importance
Storage Capacity	128MB - 1TB (varies by type)	Determines data volume handling capability
Read/Write Speeds	10MB/s - 1000MB/s (varies by interface)	Affects file transfer efficiency
Interface Standard	USB 3.2 Gen 2x2, UHS-II SD, PCIe NVMe	Defines compatibility and bandwidth limits
Durability	10,000+ insertion cycles, 10-year data retention	Impacts 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

Manufacturer	Representative Product	Key Features
SanDisk	Extreme Pro microSDXC	170MB/s write speed, 4K video recording
Kingston	Canvas React Plus SDXC	100MB/s minimum write speed for DSLRs
Samsung	BAR Plus USB Flash Drive	420MB/s read speed, IP66 waterproof rating
Lexar	Professional 1066x CFast	CFast 2.0 interface with 533MB/s speed
PNY	Elite-X Pro USB-C	420MB/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