PCIe 2.0 
This motherboard supports the latest PCIe 2.0 device for twice the current speed and bandwidth. This enhances system performance while still providing backward compatibility to PCIe 1.0 devices.
Serial Attached SCSI (SAS) technology support (DSEB-DG/SAS model only)SAS is the latest storage interface for enterprise-class storage devices. Building on and improving the parallel SCSI foundation, SAS is the new industry standard that includes Serial ATA interoperability, and is projected to be the succesor of the Ultra320 SCSI technology.
Zero-Channel RAID (ZCR) solution (DSEB-DG/SAS model only)
The motherboard comes with a ZCR socket for an optional Zero-Channel RAID card, allowing RAID 0 (striping), RAID 1 (mirroring), RAID 0+1, and RAID 5 configurations. The ZCR capability provides a cost-effective high‑performance and added reliability.
82563/82573 LAN solution 
The motherboard comes with a dual-port 82563EB network connection and two single-port 82573 L network connection to provide a total solution for your networking needs. See page 2-33 for the location of the LAN ports. See section 2.6 Jumpers for details on Gigabit LAN settings.
Serial ATA II technology 
The motherboard supports the Serial ATA II 3 Gb/s technology through 6321ESB Serial ATA interfaces. The Serial ATA II specification provides twice the bandwidth of the current Serial ATA products with a host of new features, including Native Command Queuing (NCQ), Power Management (PM) Implementation Algorithm, and Hot Swap. Serial ATA allows thinner, more flexible cables with lower pin count and reduced voltage requirements.