COB Chips Pendrive

As a professional USB flash drive manufacturer with over 15 years of production experience, we specialize in COB (Chip-on-Board) Chips Pendrive (also known as UDP flash chips), designed for bulk OEM, promotional gifts, self-assembly USB production, and global wholesale distribution. Our COB is fully waterproof, dustproof, and high shock-resistant performance, making these chips the most cost-effective and reliable core component for custom USB drives.

Built-in Grade A flash memory, stable controllers, and strict H2/H5 software testing of full capacity,and high speed, we help wholesalers, brand clients, and distributors build high-quality USB products with low cost and fast delivery.

Advanced COB / UDP Waterproof Packaging Technology

Our COB chips fully sealed Product-in-Package (PIP),and features airtight, waterproof, dustproof, and shockproof .The COB packaging protects internal components from moisture, dust, and physical impact, ensuring stable performance even in harsh environments.

High-Speed USB 2.0 & USB 3.0 Performance

Equipped with high-quality usb flash chip components, our COB pendrive chips comes with wide capacity 128MB,512MB,1GB,2GB,4GB,8GB,16GB,32GB,64GB,128GB,256GB,512GB,1TB and support USB 3.0 with read speeds up to 15–90MB/s and write speeds of 5–25MB/s, offering much faster transmission than standard USB 2.0 modules. Even under continuous large-file transfer, the chips maintain stable performance with low power consumption (operating current <50mA), ideal for daily data storage, media playback, and business file backup.

Genuine Grade A Flash, No Recycled Materials

Equipped with original brand flash memory and controllers from SMI, Alcor, CBM, and Phison. All chips are Grade A quality, never refurbished or downgraded. Each chip supports over 100,000 erase/write cycles and a minimum of 10 years data retention

Ultra-Compact & Lightweight Design

Available in two sizes: standard (24.8 * 11.3 * 1.4 mm) and micro (15 * 11.3 * 1.4 mm). Net weight is only 3g, making them extremely portable and easy to install inside any custom USB housing. The compact structure also improves compatibility with slim, mini, and card-style USB designs.

Extreme Environmental Adaptability

Our COB chips support an operating temperature range of -40°C to +70°C and storage temperature from -50°C to +85°C, with humidity tolerance from 1% to 98%. This wide environmental adaptability makes them suitable for automotive electronics, smart devices, outdoor equipment, and industrial applications.

Wide Compatibility & Plug-and-Play

Fully compatible with Windows 98/ME/2000/XP/Vista/7/8, Mac OS 8.6 and above, Linux 2.4.x and above. Supports hot-swappable plug-and-play on PCs, laptops, car stereos, smart TVs, speakers, cameras, and other USB-enabled devices without external power supply

Cost-Effective & OEM-Friendly

As a direct manufacturer, we offer the lowest factory wholesale price. The semi-finished usb flash drive chip design reduces assembly costs for customers, supports self-assembly production, and fits most standard USB casings. Low MOQ starting from 100pcs supports small businesses and promotional projects.

Strict 100% Quality Inspection

Each chip undergoes professional testing using H2/H5 software, including wafer testing, PCBA die bonding, semi-finished testing, and full-function verification. Our factory is equipped with high-precision machining and inspection equipment, ensuring a very low defect rate before shipment.

 

Manufacturers use decimal capacity calculation (1GB=1000MB), while operating systems use binary (1GB=1024MB), leading to standard industry differences:

4GB ≈ 3.6–3.8GB;8GB ≈ 7.4–7.6GB;16GB ≈ 14–15GB;32GB ≈ 28–30GB;64GB ≈ 58–60GB;128GB ≈ 110–120GB

USB Drive Format Guidance

To ensure maximum compatibility and optimal performance of our COB Chips Pendrive across different devices, we recommend the following formatting standards, which are tailored to various usage scenarios:

FAT32 Format (Recommended for Universal Compatibility): This is the most widely compatible format, suitable for connecting to car stereos, smart TVs, speakers, cameras, and older computer systems (Windows XP, Mac OS X 10.6 and below). It supports files up to 4GB and is the default format for our COB chips when preloaded with multimedia content. For seamless playback on automotive and home entertainment devices, formatting to FAT32 is mandatory.

NTFS Format (Recommended for Windows Users): Ideal for users who primarily use Windows computers (Windows 7 and above) and need to store files larger than 4GB (e.g., large video files, design documents). NTFS supports file compression, encryption, and larger storage capacities, making it suitable for business and professional use. Note that NTFS is not natively compatible with Mac OS and requires third-party software for full read-write access.

exFAT Format (Recommended for Cross-Platform Use): A balanced option that supports files larger than 4GB and is compatible with both Windows and Mac OS (Mac OS X 10.6.5 and above) without additional software. It is perfect for users who frequently switch between Windows and Mac devices, such as designers, content creators, and business professionals.

Formatting Steps (Simplified): Connect the COB chip (after assembly into a USB drive) to your computer, right-click on the USB drive icon in "My Computer" (Windows) or "Finder" (Mac), select "Format", choose the desired file system, and click "Start". Note: Formatting will erase all data, so ensure important files are backed up beforehand.

COB Chips Pendrive features a minimalist, shell-free naked PCB design with fully sealed COB packaging. The surface is smooth and flat, suitable for direct logo printing or laser engraving. The ultra-thin and compact shape allows easy installation into various USB casings. Metal contact points ensure stable conductivity and resistance to repeated insertion and removal. The overall design emphasizes durability, practicality, and customization flexibility.

We provide complete OEM/ODM solutions for usb flash drive chips to meet diverse customer needs:

Logo Customization

Free color printing or laser engraving for orders over 50 pieces. Supported file formats: AI, EPS, CDR, PSD, PDF, JPG, ENG. We also provide free digital mockups before production.

Data Preloading & Auto-Run Function

Preload marketing files, videos, catalogs, or presentations with 500MB free data loading service. Support non-deletable partitions, custom icons, and auto-run programs when plugged into a computer.

Encryption & Security Features

Support password protection, file locking, and dual-zone storage to secure sensitive data. Users can modify passwords independently.

Flexible Order Conditions

Low MOQ: 100pcs. Support mixed capacities and mixed colors (minimum 25pcs per color). Production time: 2–5 working days; rush orders available.

Non-logo samples: prepared within 24 hours.

Logo custom samples: ready in 2–3 days.

Sample fees can be refunded after placing bulk orders.

Support 1–10pcs sample testing for performance verification.

COB Chips Pendrive is widely used across multiple industries with real application cases:

Promotional Industry: Corporate gifts, trade show giveaways, brand marketing materials.

Schools & Universities: Student storage devices, teaching materials, campus souvenirs.

Technology & Electronics: Phone accessories, office electronics, smart device components.

Tradeshow Events: Portable catalogs, product demonstrations, media storage.

Travel & Tourism: Tourist gifts, travel guide storage, hotel promotional items.

Office & Stationery: Business data storage, company archives, employee gifts.

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