Product comparison · 2 motherboards

ASUS A8N-SLI S939 vs MSI K9N Ultra

36specifications compared
17differ
19identical
13known for one product only

Key differences

Processor socket
- A8N-SLI S939:Socket 939
- K9N Ultra:Socket AM2
Maximum internal memory
- A8N-SLI S939:4 GB
- K9N Ultra:8 GB
RAID levels
- A8N-SLI S939:0, 1, 1+0
- K9N Ultra:5
Number of SATA connectors
- A8N-SLI S939:4
- K9N Ultra:6
Number of Parallel ATA connectors
- A8N-SLI S939:2
- K9N Ultra:0
S/PDIF out connector
- A8N-SLI S939:No
- K9N Ultra:Yes
Number of IEEE1394 connectors
- A8N-SLI S939:1
- K9N Ultra:0
Ethernet LAN (RJ-45) ports
- A8N-SLI S939:1
- K9N Ultra:2

Side by side

Differences highlightedShow differences only

Comparison of A8N-SLI S939, K9N Ultra
49 specifications	A ASUS A8N-SLI S939 View product	B MSI K9N Ultra View product
Processor1 differ
Processor manufacturer	AMD	AMD
Processor socketDiffers	Socket 939	Socket AM2
Maximum number of SMP processorsKnown for one	1	Unknown — not stated by the source
Processor system buses supportedKnown for one	Unknown — not stated by the source	1000 MHz
Memory1 differ
Number of memory slots	4	4
ECC сompatibilityKnown for one	ECC & Non-ECC	Unknown — not stated by the source
Maximum internal memoryDiffers	4 GB	8 GB
Storage controllers1 differ
RAID levelsDiffers	0, 1, 1+0	5
Internal I/O4 differ
USB 2.0 connectors	3	3
Number of SATA connectorsDiffers	4	6
Number of Parallel ATA connectorsDiffers	2	0
S/PDIF out connectorDiffers	No	Yes
Front panel audio connector	Yes	Yes
CD/AUX audio in	Yes	Yes
ATX Power connector (24-pin)	Yes	Yes
CPU fan connector	Yes	Yes
Chassis intrusion connector	Yes	Yes
Number of COM connectors	1	1
Number of IEEE1394 connectorsDiffers	1	0
Number of EATX power connectorsKnown for one	Unknown — not stated by the source	0
Number of chassis fan connectorsKnown for one	Unknown — not stated by the source	1
Rear panel I/O ports5 differ
USB 2.0 ports quantity	4	4
Ethernet LAN (RJ-45) portsDiffers	1	2
eSATA ports quantity	0	0
PS/2 ports quantity	2	2
Firewire (IEEE 1394) portsDiffers	1	0
VGA (D-Sub) ports quantity	0	0
Headphone outputsDiffers	1	0
Microphone inDiffers	Yes	No
S/PDIF out port	Yes	Yes
Parallel ports quantity	1	1
Serial ports quantityDiffers	0	1
Modem (RJ-11) ports	0	0
Network1 differ
Networking featuresDiffers	AI NET2	Dual LAN jacks - Dual LAN 10/100/1000 Fast Ethernet - VSC8601
Featuresidentical
Motherboard form factor	ATX	ATX
Audio output channelsKnown for one	7.1 channels	Unknown — not stated by the source
Power source type	ATX	ATX
Audio chipKnown for one	Unknown — not stated by the source	Realtek ALC883
Expansion slots1 differ
Expansion slotsDiffers	- 2 x PCI Express x16 - 2 x PCI Express x1 - 3 x PCI	-1 PCI Express x16 -3 PCI Express x1 -3 PCI slots, 3.3V/ 5V PCI bus
BIOSidentical
BIOS memory sizeKnown for one	32 Mbit	Unknown — not stated by the source
Weight & dimensions2 differ
WidthDiffers	305 mm	30.5 mm
DepthDiffers	245 mm	24.5 mm
Packaging contentidentical
Bundled softwareKnown for one	- ASUS PC Probe - PC Health Monitoring - ASUS LiveUpdate - ASUS AI Booster - ASUS Cool 'n' Quiet - NVIDIA nTune - Anti-virus (OEM)	Unknown — not stated by the source
Other features1 differ
Controller interface typeKnown for one	SATA 3Gb/s	Unknown — not stated by the source
Audio outputKnown for one	Realtek ALC850	Unknown — not stated by the source
Floppy disk drive connector	Yes	Yes
GAME/MIDI connectorDiffers	Yes	No
Azalia Digital Header (ADH) connectorKnown for one	Unknown — not stated by the source	No
EZ plug connectorKnown for one	Unknown — not stated by the source	No

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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