Unique Design
333 Onboard Acceleration
Tomorrow's Performance Onboard Today
GIGABYTE P55A-series motherboards set a new standard in high performance computing by incorporating all the industry's latest high-speed data transfer technologies. Proving once again to be the true Leader in Motherboard Innovation, the GIGABYTE P55A-series delivers unparallel performance with onboard integration of the latest SuperSpeed USB 3.0 technologies from NEC, SATA Revision 3.0 (6Gbps) technologies from Marvell, and an unprecedented 3x USB power boost on all USB ports for the most power hungry USB devices. It also offers several unique technologies from GIGABYTE including Ultra Durable™ 3, AutoGreen, DES2 and GIGABYTE Smart 6 that includes a combination of 6 innovative software utilities for easier and smarter PC system performance, power and security management.
USB 3.0 USB Power 3x SATA 3.0
World's first USB 3.0 logo certified solution from NEC
Utilizing the new generation SuperSpeed USB 3.0 interface from NEC with a 10x data transfer speed boost over USB 2.0, USB 3.0 features dual-simplex transfer for simultaneous data transfer from PC to USB device for improved data transfer efficiency.
USB 3.0 10x performance is a maximum theoretical value. Actual performance may vary by system configuration.
Faster Data Transfer
Transfer of 25GB HD movie
lower is better
  70 sec
  13.9 min
(834 sec)
USB 3.0 USB 2.0
Better data transfer efficiency
  Dual Simplex
Dual direction at the same time
  USB 3.0 PC
Data transfer between USB device and PC is bidirectional. Data is both sent and received between USB device and PC simultaneously, hence improving the data transfer efficiency.
 Half Duplex transfer
Only one direction at a time
USB 2.0 device  
  USB 2.0 PC
Data transfer between USB device and PC is in only one direction. Data is either being sent or received at any one time – can't be sent and received simultaneously.
  Utmost compatibility with 3x
USB power boost
The 3x USB Power Boost from GIGABYTE is designed to deliver the utmost compatibility and stability for USB devices, such as external storage devices or optical drives, by supplying sufficient power through a single USB port. This will help free-up USB ports for using multiple USB devices on one motherboard.
World's First SATA Revision 3.0
solution provider from Marvell®
Double your hard disk drive performance with SATA Revision 3.0 (SATA 6Gbps) from Marvell®, the latest generation of high speed storage interface. Coupled with RAID 0 (Stripe) mode, SATA Revision 3.0 enables a data transfer boost of up to 4x speed over SATA Revision 2.0.
* SATA3 RAID 0 4x and SATA3 2x performance are maximum theoretical values. Actual performance may vary by system configuration.
* SATA3 SSDs are not recommended for use in RAID 0 mode on Marvell SE9128 ports.
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