This adapter allows user to connect USB 3.0 motherboard to old USB 2.0 panel such as CD-ROM panel floppy drive panel.

Features:
Superior electronic conductivity: suitable for fast transmission.
Transmission speed up to 5Gbps.
Compatible with USB 2.0 version.
Plug and play.
PVC coating: durable and flexible.
Dual shield: reduces electromagnetic interference greatly.

Specifications:
Material: Copper wire
Color: Black
Connector 1: Female 20Pin USB 3.0
Connector 2: Male 9Pin USB 2.0
Item length: 17cm / 0.5ft
Item weight: 7g / 0.24oz
Package size: 20 * 5 * 1cm / 7.8 * 1.9 * 0.4in (L * W * H)
Package weight: 9g / 0.3oz

Package list:
1 * Motherboard USB 3.0 20 Pin female to 9 Pin USB 2.0 male cable