Compare Detail
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ROG STRIX Z490-A GAMING
90MB12Y0-M0EAY0ModelB550M-ITX/AC
90-MXBDH0-A0UAYZ -
8 ChannelsAudio channels7.1 Channels
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ROG SupremeFX High Definition Audio CODEC S1220AAudio chipsetRealtek ALC887
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1 x Intel I225-V 2.5Gb Ethernet
1 x DisplayPort
1 x HDMI
2 x USB 3.2 Gen 2 (1 x Type-A + USB Type-C)
4 x USB 3.2 Gen 1 Type-A
2 x USB 2.0 (one port can be switched to USB BIOS FlashBack)
1 x Optical S/PDIF out
1 x USB BIOS FlashBack Button(s)
5 x Gold-plated audio jacksBack io ports2 x Antenna Ports
1 x PS/2 Mouse/Keyboard Port
1 x HDMI Port
1 x DisplayPort 1.4
2 x USB 2.0 Ports (Supports ESD Protection)
3 x USB 3.2 Gen1 Type-A Ports (Supports ESD Protection)
1 x USB 3.2 Gen1 Type-C Port (Supports ESD Protection)
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
HD Audio Jacks: Line in / Front Speaker / Microphone -
Intel Z490ChipsetAMD B550
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YesCrossfire supportNo
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NoEcc ram supportYes
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ATXForm factorMini ITX
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Intel I225-VLan chipsetRealtek RTL8111H
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2242 / 2260 / 2280 / 22110 - M Key
2242 / 2260 / 2280 / 22110 - M Key
2230 - E KeyM2 devices support2280 - M Key
2230 - E Key -
3M2 ports2
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10/100/1000/2500MbpsMax lan speed10/100/1000Mbps
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128GBMaximum supported ram64GB
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2Onboard usb 201
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1Onboard usb 32 gen 11
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1Onboard usb 32 gen 20
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3Pci express x16 slots1
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1Pci express x1 slots0
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1Pci express x4 slots0
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YesRaid supportYes
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4Ram slots2
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May 2020Release dateJune 2020
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6Sata 6 gbps ports4
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ROGSeries
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NoSli supportNo
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LGA1200SocketAM4
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2133Mhz
2400Mhz
2666Mhz
2800Mhz
2933Mhz
3000Mhz
3200Mhz
3333Mhz
3466Mhz
3600Mhz
3733Mhz
3866Mhz
4000Mhz
4133Mhz
4266Mhz
4400Mhz
4500Mhz
4600MhzSupported memory2133Mhz
2400Mhz
2666Mhz
2933Mhz
3200Mhz
3466Mhz
3600Mhz
3733Mhz
3800Mhz
3866Mhz
4000Mhz
4133Mhz
4200Mhz
4266Mhz
4333Mhz
4400Mhz
4533Mhz
4600Mhz -
NoWireless lanYes
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