现在Tiger Direct的官方主页可以以低价购买4G的USB，只限网购。
颜色分别有黑色和红色两种选择。
牌子为ADATA，可惜只有USB 2.0，传输速度方面不算快，但一般使用的话还是可以接受的。
价格只需$4.97，是十分低价。
点击上面的蓝色按键查看优惠页面。
以下是官方资料:
ADATA AC008-4G-RKD C008 Retractable USB Flash Drive
The ADATA C008 Retractable USB Flash Drive is a smart memory drive that you must possess for saving your tons of data! This sleek device transfers and hoards your data without the worry of losing it using its 4GB memory. You also need not bother about losing the cap since the connector is retractable. With just a push of your finger, the USB flash drive is ready to connect. It is USB 2.0 enabled that enables you to connect the drive even to high-end devices. Order the wonderful ADATA C008 Retractable USB Flash Drive and just plug and play all your data in no time.
Specifications
Flash Specifications |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| Type | USB Flash Drive | ||||||||
| USB Standard | USB 2.0 | ||||||||
| Memory Size | 4GB | ||||||||
| Dimensions (L x W x H) | 2.35″ x 0.77″ x 0.37″ | ||||||||