Processor
Supports 1st, 2nd and 3rd Gen AMD Ryzen™/ Ryzen™ with Radeon™ Vega Graphics and 2nd Gen AMD Ryzen™ with Radeon™ Graphics/ Athlon™ with Radeon™ Vega Graphics Desktop Processors for Socket AM4
Chipset
AMD® B450 Chipset
Memory
4 x DDR4 memory slots, support up to 64GB
Supports 1866/ 2133/ 2400/ 2667Mhz (by JEDEC)
For AMD Ryzen Gen3 (R5/R7/R9)
Supports 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 4000/ 4133 MHz (by A-XMP OC MODE)
For AMD Other CPU
Supports 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466 MHz (by A-XMP OC MODE)
Dual channel memory architecture
Supports non-ECC UDIMM memory
Supports ECC UDIMM memory (non-ECC mode)
Slots
1 x PCIe 3.0 x16 slot (PCI_E1)
1st, 2nd and 3rd Gen AMD Ryzen™ processors support x16 speed
Ryzen™ with Radeon™ Vega Graphics and 2nd Gen AMD Ryzen™ with Radeon™ Graphics processors support x8 speed
1 x PCIe 2.0 x16 slot (PCI_E4, supports x4 mode)
3 x PCIe 2.0 x1 slots
PCI_E4 will run x2 speed when installing devices in PCI_E2/ PCI_E3 slot.
Onboard graphics
1 x DVI-D port, support a maximum resolution of 1920x1200 @60Hz
1 x HDMI™ 1.4 port, supports a maximum resolution of 4096x2160@ 30Hz, 2560x1600@ 60Hz
Only support when using Ryzen™ with Radeon™ Vega Graphics and 2nd Gen AMD Ryzen™ with Radeon™ Graphics/ Athlon™ with Radeon™ Vega Graphics processorsMaximum shared memory of 2048 MB
Multi-GPU
Supports 2-Way AMD® CrossFire™ Technology
Storage
AMD® CPU
2 x SATA 6Gb/s ports
1 x M.2 slot (Key M)
Supports PCIe 3.0 x4 (1st, 2nd and 3rd Gen AMD Ryzen™/ Ryzen™ with Radeon™ Vega Graphics and 2nd Gen AMD Ryzen™ with Radeon™ Graphics) or PCIe 3.0 x2 (Athlon™ with Radeon™ Vega Graphics) and SATA 6Gb/s
Supports 2242/ 2260 /2280/ 22110 storage devices
AMD® B450
4 x SATA 6Gb/s ports
SATA5 and SATA6 ports will be unavailable when installing a M.2 device in M.2 slot.
Raid
AMD® B450
Supports RAID 0, RAID1 and RAID 10 for SATA storage devices
USB
AMD® B450
1 x USB 3.2 Gen2 (SuperSpeed USB 10Gbps) Type-C port on the back panel
1 x USB 3.2 Gen2 (SuperSpeed USB 10Gbps) Type-A port on the back panel
2 x USB 3.2 Gen1 (SuperSpeed USB) ports available through the internal USB 3.2 Gen1 connector
6 x USB 2.0 (High-speed USB) ports (2 Type-A ports on the back panel, 4 ports available through the internal USB 2.0 connectors)
AMD® CPU
2 x USB 3.2 Gen1 (SuperSpeed USB) Type-A ports on the back panel
Audio
Realtek® ALC892 Codec
7.1-Channel High Definition Audio
LAN
1 x Realtek® 8111H Gigabit LAN controller
Internal connectors
1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
6 x SATA 6Gb/s connectors
2 x USB 2.0 connectors (support additional 4 USB 2.0 ports)
1 x USB 3.2 Gen1 connectors (support additional 2 USB 3.2 Gen1 ports)
1 x 4-pin CPU fan connector
1 x 4-pin water-pump-fan connector
4 x 4-pin system fan connectors
1 x TPM module connector
1 x Front panel audio connector
2 x System panel connectors
1 x Chassis Intrusion connector
1 x Serial Port connector
1 x Clear CMOS jumper
2 x 5050 RGB LED strip 12V connectors
Back panel ports
Flash BIOS Button
PS/2 Combo Port
USB 3.2 Gen1
LAN Port
HD Audio Connectors
USB 2.0 Port
DVI-D Port
HDMI Port
USB 3.2 Gen2 Type A+C
MSI B450 TOMAHAWK MAX back panel ports
Dimensions
12 in. x 9.6 in. (30.5 cm x 24.4 cm)
ATX Form Factor
Mounting
9 mounting holes
Operating system
Support for Windows® 10 64-bit
Support for Windows® 7 64-bit
* To support Windows® 7 64-bit, you must install an AMD Pinnacle Ridge & Summit Ridge CPU.