Specifications

Looking over the specs, the KT7A-RAID supports practically everything you'd want out of a KT133A motherboard:

CPU
Supports AMD-K7 Duron 600MHz-850MHz or future 200MHz FSB Socket A Processors
Supports AMD-K7 Athlon 700MHz-1.2GHz or future 266MHz FSB Socket A Processors
Supports 200/266 MHz Alpha EV6 bus for the AMD Athlon & Duron Processors

Chipset
VIA KT133A /VIA 686B
Supports Advanced Configuration and Power Management Interface (ACPI)
Supports AGP 2X/4X (Sideband)
Supports 100/133MHz Memory Bus Settings

Ultra DMA 100
High Point HTP370 IDE Controller
Ultra DMA 100MB/Sec data transfer rate
RAID 0(stripping mode for boosting performance)
RAID 1 (mirroring mode for data security)
RAID 0+1(stripping and mirroring)

Memory
Three 168-pin DIMM sockets support PC100/PC133 SDRAM module
Supports up to 1.5 GB MAX. (8, 16, 32, 64, 128, 256, 512MB SDRAM)

System BIOS
SOFTMENU III Technology to set CPU parameters
Year 2000 Compliant

Multi I/O Functions
Two Channels of Bus Master IDE Ports supporting up to four Ultra DMA 33/66/100(up to 4 HDD devices)
Two Channels of Bus Master IDE Ports supporting up to four Ultra DMA 66
PS/2 Keyboard and PS/2 Mouse Connectors
1x Floppy Port (up to 2.88MB)
1x Parallel Port (EPP/ECP)
2x Serial Ports
2x USB Connectors
Onboard USB header for Two extra USB channels

Miscellaneous
ATX form factor
1 AGP slot, 6 PCI slots and 1 ISA slots
Hardware monitoring - Including Fan speed, Voltages, System environment temperature
Built-in Wake on LAN/Wake on Modem
Built-in IrDA TX/RX header

Notes

With the exception of the new North Bridge, the KT7/KT7-RAID and KT7A/KT7A-RAID are practically identical. Another new feature you'll get with the KT7A is VIA's 686B South Bridge standard on all products. The new 686B chip adds native support for the ATA/100 protocol. Previously, the 686A chip was used.

Newer KT7/KT7-RAIDs also ship with the 686B chip, which makes things confusing for those that don't keep up with the motherboard scene, "Does the KT7 I just bought have the 686B chip, or 686A?" is a question we sometimes receive. At least with the KT7A, you know you've got VIA's 686B chip onboard.

Another feature we really like about the KT7A-RAID is one that's missing from most KT133/KT133A motherboards: onboard sound. ABIT elected not to include an onboard CODEC and AMR slot on the KT7 series of motherboards. These are two "features" we're glad ABIT left out of the final design.