MOSTOP&reg; 20pin Motherboard to Dual USB 3.0 Female with Back Panel [1.64Ft] Cable 4 * USB 3.0 PORT - Allows you to convert an unused 3.5" floppy drive space into 4 USB 3.0 ports. USB 3.0 - Supports data transfer speeds up to 5 Gb/s (maximum). The speed of transmission is much faster than USB 2.0. PLUG & PLAY - Easy to install, no external power needed, 15-pin SATA power connector to power USB devices from your PC power supply. COMPATIBILITY - Compatible with Windows XP / Vista / 7 / 8. MOSTOP UNIQUE & AMAZING PROMISE: 180 Days Return or Replacement & Lifetime Warranty Without Condition. Our purpose is timely, professional and integrity. If whatever for any reason, you are not satisfied with our product, you could free to contact us, we will try our best to sovle the problem. Click the "Add to Cart Button" at the Right of this Page to Order Your Set Now! Enjoy the EXCELLENT SHOPPING EXPERIENCE.