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**B Grade** B450-A PRO (Socket AM4) DDR4 ATX Motherboard
B Grade items may have been used, have damaged packaging, missing accessories or a combination of these (Motherboards may be missing I/O shields).
Some items may have scuff marks or slight scratches but should otherwise be an operable product.
The B450 chipset forms the centrepiece of the MSI B450-A Pro motherboard and has been specially developed and optimised for 2000- series (Pinnacle Ridge) Ryzen CPUs. B450 motherboards support all features of 2nd gen Ryzen processors, such as the AMD's new XFR2 overclocking. Additionally, the motherboards support up to 64 GB of RAM with a guaranteed clock frequency of 2.933 MHz. Overclocking to higher frequencies is also an option, although the increase will depend on the motherboard.
The Features of the MSI B450-A Pro at a Glance:
- 1x PCIe 3.0 x16 (x16) for high-end graphics cards
- 2x USB 3.1 Type A / 4x USB 3.0 / 6x USB 2.0
- 1x M.2 slot PCIe 3.0 x4 (22110)/ 6x SATA 6G
- DDR4-RAM up to 3.466 MHz via OC
- 1x HDMI / 1x DVI-D / 1x VGA
The Features of the MSI B450-A in Detail:
The MSI B450-A Pro ATX motherboard comes with one PCI-Express 3.0 slot with full x16 connectivity for graphics cards as well as a PCI-Express 2.0 x16 slot with x4. For additional expansion cards, the board offers four PCIe-x1 slots. The four RAM slots support up to 64 GB DDR4-RAM with a clock frequency of up to 2.933 MHz and can be clocked up to 3.466 MHz via overclocking.
An M.2 slot with PCIe connectivity is available thanks to this being an AM4 motherboard. M.2 SSDs that use the advanced NVM-Express protocol (NVMe) and that have four PCI-Express 3.0 lanes are up to eight times as fast as SATA 6G hard drives and support data transfer rates of up to 32 Gbit/s.
The MSI B450-A Pro has an I/O panel with two USB 3.1 Type A connections. USB 3.1 Gen 2 ports are capable of achieving speeds of up to 10 Gbit/s per port and USB ports with this standard generally support tablets and smartphones that have quick charging. For CPUs with integrated graphics like AMD's Raven Ridge, the board provides an HDMI- as well as a DVI-D- and VGA connector. The motherboard offers a header for static RGB lighting elements and there are also four 4-pin PWM connectors available for fans and a combined 4-pin connector for a water cooling pump or additional fans.
ATX (305 x 244 mm)
AM4 (for Pinnacle Ridge / Summit Ridge / Bristol Ridge / Raven Ridge)
4x DDR4 (max. 2.933 MHz, 3.466 via OC)
max. 64 GB
- Slots (with a Ryzen CPU):
1x PCIe 3.0 x16
1x PCIe 2.0 x16 (electrical x4)
Multi-GPU Configruations: 2-way AMD CrossFire
4x PCIe 2.0 x1
- Internal Connections:
6x SATA 6G (RAID 0, 1, 10)
1x M.2 (M-Key, PCIe 3.0 x4 with max. 32 Gbit/s, sizes 2242 to 22110)
1x USB 3.0 Header (2 Ports)
2x USB 2.0 Header (4 Ports)
4x 4-Pin Fan (PWM)
1x 4-Pin Pump Connector
1x Front Panel Audio Connector
1x 4-Pin RGB Header (12V, JRGB)
1x TPM Connector
- External Connections:
1x PS/2 Combo
2x USB 3.1 Type A
2x USB 3.0 Type A
2x USB 2.0
1x Gigabit LAN (Realtek 8111H)
1x BIOS Flashback Button
6x Audio (HD Audio, 7.1 Sound)
- Power Supply:
1x 24-Pin ATX12V
1x 8-Pin ATX12V