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The ROG Crosshair X870E Edition 20 is ASUS's 20th-anniversary AM5 flagship, an E-ATX board at 12 x 10.9 inches for AMD Ryzen 9000, 8000 and 7000 series processors. Your case must list E-ATX support at that width, not just ATX.
The ROG Crosshair X870E Edition 20 is ASUS's 20th-anniversary AM5 flagship, an E-ATX board at 12 x 10.9 inches for AMD Ryzen 9000, 8000 and 7000 series processors. Your case must list E-ATX support at that width, not just ATX.


A teamed power solution rated 24 x 110A for VCORE, 2 x 110A for SoC and 2 x 80A for MISC sits under a full-copper VRM heatsink, feeding high-core-count Ryzen processors under sustained load.

A teamed power solution rated 24 x 110A for VCORE, 2 x 110A for SoC and 2 x 80A for MISC sits under a full-copper VRM heatsink, feeding high-core-count Ryzen processors under sustained load.

The board ships with its own 360mm all-in-one liquid cooler. The Ryujin 360 Edition 20 uses an Asetek EMMA Gen10 V3RX pump and a 40mm-thick 20 FPI non-louvered radiator, with a swivel dual 6.67-inch curved AMOLED display and Display Sync-Up.
The board ships with its own 360mm all-in-one liquid cooler. The Ryujin 360 Edition 20 uses an Asetek EMMA Gen10 V3RX pump and a 40mm-thick 20 FPI non-louvered radiator, with a swivel dual 6.67-inch curved AMOLED display and Display Sync-Up.


Five M.2 slots sit on the board and extend to nine in total using the bundled expansion cards. M.2_1 and M.2_2 run at PCIe 5.0 x4 with Ryzen 9000 and 7000 series processors, alongside four SATA 6Gb/s ports.

Five M.2 slots sit on the board and extend to nine in total using the bundled expansion cards. M.2_1 and M.2_2 run at PCIe 5.0 x4 with Ryzen 9000 and 7000 series processors, alongside four SATA 6Gb/s ports.

Two Realtek 10Gb Ethernet ports with ASUS LANGuard handle wired networking, and wireless is 2x2 Wi-Fi 7 on 2.4, 5 and 6GHz with 320MHz channels plus Bluetooth 5.4. The rear panel adds two USB4 40Gbps ports and twelve USB 10Gbps ports.
Two Realtek 10Gb Ethernet ports with ASUS LANGuard handle wired networking, and wireless is 2x2 Wi-Fi 7 on 2.4, 5 and 6GHz with 320MHz channels plus Bluetooth 5.4. The rear panel adds two USB4 40Gbps ports and twelve USB 10Gbps ports.


Four DIMM slots take up to 256GB of DDR5. Overclocked speeds reach 8600+MT/s on Ryzen 9000, 9600+MT/s on Ryzen 8000 and 8000+MT/s on Ryzen 7000 series processors.

Four DIMM slots take up to 256GB of DDR5. Overclocked speeds reach 8600+MT/s on Ryzen 9000, 9600+MT/s on Ryzen 8000 and 8000+MT/s on Ryzen 7000 series processors.
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