Jmicron JMS-551 Firmware Version 18.0.2.23.2. - New version firmware from JMicron  USB2/3 & Sata controlers JMS-551. The firmware is just suitable for 3U2B3A, Must not try to update the firmware for other items.   

And please excute the program under Windows XP SP3    
Please strictly follow below steps,otherwise,3U2B3A will be damaged.    
Please backup your data prior to upgrade

Jmicron JMS-551 Firmware Version 18.0.2.23.2