Card-style USB flash drive

The most popular dimensions of card USB flash drives on the market are practically the same as the height and width of a standard credit card. The main specification is 85 × 54 mm (length × width), with a thickness that usually ranges from 1.0 to 2.0 mm. One of the best-selling models measures 84 × 52 × 2 mm and strikes a good balance between portability and practicality: it fits easily in a wallet or a cardholder.

Metal models or those with special designs can be a bit thicker. For example, metal card USB flash drives usually have a thickness close to 2.6 mm, while plastic ones generally stay in the 1.0–2.0 mm range.

It is worth noting that some manufacturers slightly adjust the dimensions according to structural needs. For example, card USB flash drives with a swivel connector may measure 85 × 45 mm to leave room for the mechanism, while keeping the overall proportions of a credit card so they are easy to store.

Plastic (PP)
The most common material is polypropylene (PP). It is economical, lightweight, and easy to customize with printed designs, making it ideal for volume production and everyday use. Thanks to its excellent cost-effectiveness, plastic is the most widely used material for card USB flash drives.

Metal (aluminum alloy)
Usually made of aluminum alloy, metal card USB flash drives are durable and resistant to scratches and impacts. They can be anodized in vivid colors and finished with brushed or glossy textures. The logo can be laser engraved, which makes them an excellent choice for premium gifts or long-term use: they combine style and durability.

Wood
Made from natural materials such as walnut, beech, natural wood, maple, rosewood, or bamboo, wooden card USB flash drives feature natural grain and a warm touch. They are highly appreciated for cultural, creative, or personalized gifts because of their unique aesthetics. That said, they should be kept away from moisture to prevent warping.

Biodegradable materials
Made from eco-friendly wheat straw, these card USB flash drives can decompose naturally after disposal. They align with sustainable, eco-friendly initiatives, making them ideal for brands that prioritize environmental responsibility: they balance practicality with ecological awareness.

Yes, some card-shaped USB flash drives on the market do support USB 3.0, although they are usually custom-made models.

USB 3.0 ports are normally identified by the blue connector and offer much higher data transfer speeds, up to 5Gbps, around 10 times faster than USB 2.0.

That makes them ideal for those who need high performance, for example to store high-definition videos, large documents or corporate data.

Yes, card-shaped USB flash drives support full-color printing on both sides, one of the most requested customization options.

Thanks to their flat, smooth surface, they are ideal for UV printing, silk-screening, and other high-resolution printing methods. Even the metal versions can be printed on both sides — after a surface coating — combining laser engraving with full-color printing.

Double-sided printing makes full use of the available space to showcase logos, illustrations, or custom information, making them perfect as promotional gifts, creative presents, and branded merchandise. They combine functionality with strong visual appeal.

The minimum order for existing styles is 100 pieces per design. For styles that require mold development, the minimum order starts at 500 pieces per design. Customizing logos on existing styles also starts at 100 pieces per order.

Wooden card USB flash drives are available in several materials, including natural wood, walnut, cherry, beech, maple, carbonized bamboo and bamboo. Among them, natural wood, beech and bamboo are the most popular options.