Description
ZXCOOL presents premium anti-static ESD bags specifically designed for 3.5″ hard drives, SSDs, and a wide range of sensitive electronic components. Measuring 5.9 × 7.88 inches (15 × 20 cm), these resealable bags provide the perfect fit for 3.5″ HDDs while offering versatile protection for RAM modules, GPUs, memory cards, earphones, batteries, cables, and other electronic parts.
Engineered with high-quality PET (Polyethylene Terephthalate) and aluminized film, these bags deliver superior anti-static performance, moisture resistance, and durability. The semi-translucent design allows for easy visual inspection of contents, while the reusable zip-lock seal ensures secure closure without the need for additional tools.
Key Features
| Feature | Benefit |
|---|---|
| Higher Anti-Static Coefficient (≥10¹⁰) | Inner and outer anti-static coefficient exceeds 10¹⁰—significantly stronger than ordinary products (10⁸–10⁹), ensuring reliable ESD protection for sensitive electronics |
| Safe & Eco-Friendly Material | Made from high-quality PET with aluminized film—non-toxic, odorless, and eco-friendly. Stable across a wide temperature range from -50°C to 50°C |
| Class II Moisture Resistance | Class II moisture resistance rating—waterproof, dustproof, and reusable sealing strip. Supports vacuum storage to prevent oxidation of electronic components |
| Resealable & Translucent Design | Zip-lock seal for easy use without extra tools; semi-transparent for clear viewing—ideal for storage, inventory management, and product display |
Technical Specifications
| Dimensions | 5.9 × 7.88 inches / 15 × 20 cm |
| Material | PET (Polyethylene Terephthalate) with aluminized film |
| Anti-Static Coefficient | ≥ 10¹⁰ (inner and outer layers) |
| Surface Resistance | 10⁴ – 10¹¹ Ω (dissipative range per ANSI/ESD S541) |
| Temperature Range | -50°C to 50°C |
| Moisture Resistance | Class II |
| Closure Type | Reusable zip-lock / resealable |
| Appearance | Semi-translucent |
| Material Safety | Non-toxic, odorless, eco-friendly |
| Vacuum Compatibility | Yes (supports vacuum storage) |
Applications
These versatile anti-static bags are ideal for a wide range of electronic components and devices:
- 3.5″ Hard Drives (HDD/SSD) – Perfect fit for standard desktop hard drives
- 2.5″ Hard Drives & SSDs – Also suitable for smaller form-factor drives
- RAM Modules – Memory cards and DIMM modules
- Graphics Cards (GPUs) – Video cards and expansion cards
- I/O Memory Cards – SD cards, microSD cards, and flash storage
- Earphones & Audio Devices – Headphones, earbuds, and cables
- Batteries – Button batteries and small power cells
- LED Components – LED light bars and sensitive lighting components
- PCBs & Electronic Assemblies – Circuit boards and sub-assemblies
These bags are particularly suitable for in-plant handling, warehousing, inventory management, retail display, and inter-facility transport of ESD-sensitive components.
Industry Standards & Compliance
ZXCOOL’s anti-static ESD bags meet or exceed key industry requirements:
ANSI/ESD S20.20 & ANSI/ESD S541
Meets packaging material requirements for electrostatic discharge (ESD) control programs. The bags fall within the dissipative range (surface resistance of 10⁴ to 10¹¹ Ω) as defined by ANSI/ESD S541. Packaging materials in intimate contact with devices should be dissipative to safely conduct charges to ground.
ANSI/ESD STM11.11
Surface resistance testing conforms to the ESD Association’s standard test method for measuring surface resistance of packaging materials.
Environmental Compliance
Made from high-quality PET with aluminized film—non-toxic, odorless, and eco-friendly. Meets environmental requirements for safe handling and disposal.
Why Choose ZXCOOL?
| Advantage | Description |
|---|---|
| Superior Anti-Static Protection | Anti-static coefficient ≥10¹⁰—higher than ordinary products (10⁸–10⁹), providing reliable protection for sensitive electronics |
| Proven Material Quality | Premium PET with aluminized film—non-toxic, odorless, and stable from -50°C to 50°C |
| Comprehensive Moisture Protection | Class II moisture resistance with waterproof, dustproof sealing strip—supports vacuum storage |
| Convenient & Reusable | Zip-lock design eliminates need for heat-sealing equipment; semi-translucent for easy viewing |
| Versatile Compatibility | Perfect for 3.5″ HDDs, 2.5″ drives, RAM, GPUs, memory cards, earphones, batteries, and more |
| ESD Standard Compliant | Meets ANSI/ESD S20.20, ANSI/ESD S541, and ANSI/ESD STM11.11 requirements |
Contact ZXCOOL today to discuss your anti-static bag requirements. Whether you need standard 5.9×7.88 inch bags for 3.5″ hard drives or custom sizes for other electronic components, our team is ready to deliver reliable ESD protection for your sensitive devices.








Brien –
We ship thousands of hard drives monthly to data center clients worldwide, and these anti-static bags have significantly reduced our ESD-related failure rates. The 15×20cm size fits standard 3.5″ drives perfectly — not too tight, not too loose. What truly sets these apart is the anti-static coefficient of ≥10¹⁰, which is noticeably higher than the typical 10⁸–10⁹ bags we tested from other suppliers. The PET/aluminized film construction provides excellent moisture resistance (Class II), which is critical for sea freight shipments that may sit in humid containers for weeks. We also appreciate the reusable zip-lock — our warehouse team can open bags for inspection and reseal them without compromising protection. The semi-translucent design allows for quick visual verification without opening, streamlining our inventory checks. A reliable, cost-effective solution that we will continue using.