Compare Detail
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X299M EXTREME4ModelZ490M
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7.1 ChannelsAudio channels
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Realtek ALC1220Audio chipset
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Intel X299ChipsetIntel Z490
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YesCrossfire supportYes
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NoEcc ram supportNo
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Micro ATXForm factorMicro ATX
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Intel I219-VLan chipset
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2230 / 2242 / 2260 / 2280 / 22110 - M Key
2260 / 2280 - M KeyM2 devices support2260 / 2280 - M Key (Intel 11th Gen only)
2242 / 2260 / 2280 / 22110 - M Key -
2M2 ports2
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Dual 10/100/1000MbpsMax lan speed
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64 GBMaximum supported ram128GB
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2Onboard usb 202
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1Onboard usb 32 gen 11
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3Pci express x16 slots2
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0Pci express x1 slots1
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NoRaid supportYes
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4Ram slots4
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8Sata 6 gbps ports6
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YesSli supportNo
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LGA2066SocketLGA1200
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2133Mhz
2400Mhz
2666Mhz
2800Mhz
2933Mhz
3200Mhz
3600Mhz
3733Mhz
3800Mhz
3866Mhz
4000Mhz
4133Mhz
4200Mhz
4266MhzSupported memory2133Mhz
2400Mhz
2666Mhz
2933Mhz
3200Mhz -
NoWireless lanNo
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