i took this off the ASROCK website
www.asrockamerica.com
you can have dual channel, but only if you are using a socket 939 processor.(i am assuming you can use both and get dual channel)
Processor: Support AMD Socket 754/939 (Athlon 64/Athlon 64FX & 32 bit Sempron). Support Hyper Transport Technology
Chipset: Single Chip ULi (ALi) M1689
Memory: DIMM slots 4,5: supported with socket 754 processor
DIMM slots 1-3: supported with socket 939 processor
Max 2 GB, Dual channel technology with socket 939 Athlon 64FX processor
Video: N/A
Slots: 1 x AGP 8X/4X slot(1.5V), 3 x PCI (2.3 compliance) slots
Modem: N/A
Audio: Realtek 850 7.1 Channel AC'97 audio codec
LAN: Realtek RTL8201 10/100 Ethernet LAN (802.3u), support WOL
I/O (Real): 1 x PS2 Keyboard
1 x PS2 Mouse
1 x Printer Port (LPT 1)
1 x Serial Port (COM 1)
1 x Audio Port (MIC-IN, LINE-IN, LINE-OUT)
1 x 6 USB 2.0 Ports + 2 ports upgrade via header
1 x RJ 45 LAN Port
Connector/
Header: 2 x SATA 1.5Gb/s connectors, supports RAID,0,1 JBOD
SATA HDD_Hotplug
2 x IDE Connector (ATA 133/100/66 mode)
1 x FDD Connector
1 x ATX Power Connector (20pin)
1 x ATX 12V Power Connector (4pin)
1 x Front panel audio connector
1 x CPU, System Fan
1 x CD/AUX audio,(Front panel audio connector)
1 x SIR/CIR
BIOS: AMI 2MB Flash ROM with ACPI, SM BIOS 3.0, PnP
Form Factor : ATX
Special
Features: Support WOL, WOR, KB power ON/OFF and interrup
wake up from keyboard/mouse.
Built-in ASRock U-COPâ„¢ CPU Overheating Protection
and Hybrid Boosterâ„¢ Technology
Accessories : Quick Installation Guide, I/O shield
Support CD ( Drivers, Utilities, PC-Cillin 2002 OEM,
ASRock PC DIY Demo)
Floppy & ATA 100 Cables
Serial ATA DATA cable
Serial ATA 1 to 1 power cable