Introduction
The SSK 512GB USB SSD Solid State Flash Drive (Model SD300) is a high-performance portable storage device designed for rapid data transfer and reliable storage. Featuring USB 3.2 Gen 2 technology, it offers exceptional read and write speeds, making it ideal for large files, 4K videos, and quick backups. Its compact and durable design, coupled with wide compatibility across various devices, ensures a versatile and convenient user experience.
What's in the Box
- 1 x SSK 512GB USB SSD Solid State Flash Drive (Model SD300)
- 1 x USB-C Adapter
- 1 x Leather Protective Case

Image: The SSK 512GB USB SSD Solid State Flash Drive shown alongside its included leather protective case.
Setup
The SSK SD300 is designed for plug-and-play functionality, requiring no special drivers or software installation for most operating systems.
- Connect to Device:
- For devices with a standard USB-A port (e.g., most laptops, desktop PCs), directly insert the SSK SD300 into an available USB-A port.
- For devices with a USB-C port (e.g., newer laptops, smartphones, tablets), attach the included USB-C adapter to the SSK SD300's USB-A connector, then insert the USB-C adapter into your device's USB-C port.

Image: The SSK SSD and its USB-C adapter, illustrating compatibility with smartphones, laptops, tablets, smart TVs, and car audio systems.
- Device Recognition: Your operating system should automatically detect the drive. It will appear as a removable storage device (e.g., "SSK SSD" or a drive letter) in "My Computer" (Windows) or "Finder" (macOS).
- Initial Formatting (if necessary): The drive comes pre-formatted and ready for use. If you wish to reformat the drive for a specific file system (e.g., NTFS, exFAT, HFS+), use your operating system's disk management tools. Warning: Formatting will erase all data on the drive.
Operating Instructions
Data Transfer
To transfer files to or from the SSK SD300, simply drag and drop files or folders between your computer's storage and the SSK drive's icon. For optimal performance, ensure you are connected to a USB 3.2 Gen 2 compatible port.

Image: A graphical representation comparing the read/write speeds of the SSK USB 3.2 Solid State Drive (568.12 MB/s read, 520.89 MB/s write) against a normal USB 3.0 Flash Drive (78.60 MB/s read, 35.12 MB/s write).
Safe Removal
Always safely eject the SSK SD300 before physically disconnecting it from your device to prevent data corruption.
- Windows: Click the "Safely Remove Hardware and Eject Media" icon in the system tray, then select the SSK drive.
- macOS: Drag the drive icon from your desktop to the Trash, or right-click (Ctrl-click) the drive icon and select "Eject".
- Android: Go to Storage settings and tap "Eject" next to the drive.
Maintenance and Care
- Physical Protection: The drive features a durable zinc alloy casing. Use the provided leather protective case to guard against scratches and minor impacts during transport.
- Temperature: Avoid exposing the drive to extreme temperatures. The recommended working temperature is -10℃ to +40℃.
- Humidity: Operate the drive within a working humidity range of 30% to 70% RH.
- Cleaning: Use a soft, dry cloth to clean the exterior of the drive. Do not use liquid cleaners or solvents.
- Data Backup: While SSDs are reliable, it is always recommended to regularly back up important data to multiple locations.

Image: The SSK SSD held in a hand, demonstrating its small and light form factor (approximately 2.9 inches long and 3/4 inch wide).
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Drive not recognized | Loose connection, incompatible port, driver issue, drive not initialized/formatted. |
|
| Slow transfer speeds | Connected to a slower USB port (e.g., USB 2.0), system resource contention, fragmented files. |
|
| Drive becomes warm during use | Normal operation, especially during heavy data transfer. The zinc alloy casing helps dissipate heat. | This is normal. If it becomes excessively hot to touch or causes system instability, disconnect and contact support. |
Specifications
| Feature | Detail |
|---|---|
| Model | SD300 |
| Storage Capacity | 512 GB |
| Interface | USB 3.2 Gen 2 (USB-A connector) |
| Transfer Speed (Max) | Up to 550 MB/s Read, Up to 500 MB/s Write (actual speeds may vary) |
| Dimensions (LxWxH) | 2.85 x 0.79 x 0.33 inches (72.4 x 20.1 x 8.4 mm) |
| Weight | 1.41 ounces (40 grams) |
| Material | Zinc Alloy |
| Color | Gray |
| Operating Temperature | -10℃ to +40℃ (14°F to 104°F) |
| Working Humidity | 30% - 70% RH |
| Compatible Operating Systems | Windows, macOS, Linux, Android |
| Special Feature | Portable, Includes USB-C Adapter |

Image: The back of the product packaging, displaying detailed specifications and compliance information.
Warranty and Support
SSK products are designed for reliability and performance. For warranty information and technical support, please contact SSK customer service.
- Manufacturer: SSK Corporation
- Support Email: support@ssk.cn
- Made in: China
Please retain your proof of purchase for warranty claims.





