This third-generation square metal key USB drive features an integrated aluminum alloy die-casting process to create its square key shape. The metal casing undergoes CNC precision machining with smoothly rounded edges, replicating the tactile feel of traditional keys while leveraging the metal’s resistance to deformation and corrosion for daily keychain use. The keyhole design not only accommodates standard keyrings (inner diameter ≥3mm) for consolidated storage with car keys, access cards, and more, but also employs optimized mechanical hole positioning to distribute pulling forces during attachment. This prevents stress damage to both the casing and storage module.

Available in a variety of colors including Bright Blue, Metallic Silver, and Vibrant Orange, offering rich and diverse options to meet different personalized styling needs.

Custom logos utilize laser etching combined with anodic oxidation coloring. Laser etching engraves patterns onto metal surfaces with micron-level precision, ensuring consistent line fineness (line width ≤0.1mm) and depth for logos. The subsequent anodic oxidation process forms a dense oxide film on the metal surface. This film precisely reproduces brand colors through electrocoloring technology (color deviation ΔE <1.5, compliant with Pantone standards), while imparting Hard Anodize-grade hardness (Mohs hardness ≥6) to the oxide layer. This protects against key friction and sharp object scratches. Accelerated wear testing confirms the logo remains clearly visible after 5,000 simulated friction cycles.

At the data transmission level, it fully supports the USB 3.0 transfer protocol (backward compatible with USB 2.0). Tested sustained read speeds reach up to 90MB/s, with write speeds exceeding 40MB/s, efficiently handling the transfer demands of large files such as high-definition images and video footage. Additionally, the built-in controller features ECC (Error Correction Code) and power loss protection mechanisms. In extreme scenarios such as sudden power outages or interrupted data transfers, it automatically repairs data fragmentation, reducing the risk of file corruption. This meets professional users’ dual demands for “data security + transmission efficiency.”