A system and method for determining flow quality statistics for real-time transport protocol data flows is disclosed. The present invention relates to a method for budgeting transactions under a Universal Serial Bus protocol, utilizing split transactions, such as USB 2. The major assets are scheduled for upgrade on some basis. The objects being carried can be held by clamps, by fasteners, or through the use of insertions with longitudinally extending channels. In addition, a fuel cell system and a method for delivering a gaseous fuel are claimed.