|Half Moon Rendevous|
Go into the private room in the Half Moon Cyber Cafe in Westview. Speak to Topaz Zakone.
Look for the sparkling shelf in the room you are in.
Fight Xolotls on the way there, which can be 3 to 8 levels higher than your own fight level. It's recommended to kill all Xolotls in the room for more fight points and loot. Xolotls will set you on fire, occasionally an ongoing fire after you killed does not let you loot right away. Some of the killed Xolotls let you loot hides, bone and essences then.
Finally collect US drive from shelf and return it to Topaz to receive reward.
Amount of reward depends on your own fight level, on level 100 you receive 200 rubies and 17370 experience.