Compare Detail
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Prime Z390-PModelX299 Steel Legend
90-MXBBJ0-A0UAYZ -
8 ChannelsAudio channels7.1 Channels
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Realtek ALC887Audio chipsetRealtek ALC1220
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1 x PS/2 keyboard (purple)
1 x PS/2 mouse (green)
1 x DisplayPort
1 x HDMI
1 x LAN (RJ45) port(s)
2 x USB 3.1 Gen 2 Type-A
4 x USB 3.1 Gen 1 Type-A
3 x 8-channel Audio I/OBack io ports1 x PS/2 Mouse/Keyboard Port
1 x Optical SPDIF Out Port
4 x USB 2.0 Ports (Supports ESD Protection)
1 x USB 3.2 Gen2x2 Type-C Port (20Gb/s) (ASMedia ASM3242) (Supports ESD Protection)
3 x USB 3.2 Gen1 Ports (Supports ESD Protection)
2 x RJ-45 LAN Ports with LED (ACT/LINK LED and SPEED LED)
1 x Clear CMOS Button
HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks) -
Intel Z390ChipsetIntel X299
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YesCrossfire supportYes
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NoEcc ram supportNo
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ATXForm factorATX
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Realtek RTL8111HLan chipsetIntel I219-V
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2242 / 2260 / 2280 - M Key
2242 / 2260 / 2280 - M Key
2230 - E KeyM2 devices support2242 / 2260 / 2280 / 22110 - M Key
2260 / 2280 - M Key
2230 - E Key -
3M2 ports3
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10/100/1000MbpsMax lan speedDual 10/100/1000Mbps
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128GBMaximum supported ram256 GB
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1Onboard usb 202
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2Onboard usb 32 gen 11
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0Onboard usb 32 gen 21
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2Pci express x16 slots4
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4Pci express x1 slots1
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YesRaid supportYes
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4Ram slots8
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October 2018Release dateJanuary 2020
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4Sata 6 gbps ports8
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NoSli supportYes
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LGA1151SocketLGA2066
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2133Mhz
2400Mhz
2666Mhz
2800Mhz
3000Mhz
3200Mhz
3300Mhz
3333Mhz
3400Mhz
3466Mhz
3600Mhz
3733Mhz
3866Mhz
4000Mhz
4133Mhz
4266MhzSupported memory2133Mhz
2400Mhz
2666Mhz
2800Mhz
2933Mhz
3200Mhz
3600Mhz
3733Mhz
3800Mhz
4000Mhz -
NoWireless lanNo
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