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⚙️ Power your productivity with style and speed — the ASUS PRIME B450M-A II means business!
The ASUS PRIME B450M-A II is a micro ATX motherboard designed for AMD Ryzen AM4 processors, offering robust support for up to 128GB DDR4 RAM at 4400 MHz, multiple display outputs (HDMI/DVI-D/D-Sub), and high-speed USB 3.2 Gen 2 connectivity. It features Aura Sync RGB lighting for customizable aesthetics and BIOS FlashBack™ for easy firmware updates, making it a versatile and reliable foundation for professional-grade desktop builds.









| Asin | B08K91L574 |
| Available Memory Slots | 4 |
| Best Sellers Rank | 1,989 in Computers & Accessories (See Top 100 in Computers & Accessories) 8 in Motherboards |
| Box Contents | Body Room |
| Brand Name | ASUS |
| Chipset Family | B450 |
| Chipset Type | AMD B450 |
| Compatible Devices | Desktop PCs with AMD Ryzen CPU Socket AM4 |
| Compatible Processors | AMD Ryzen 5000, AMD Ryzen 3000, AMD Ryzen 2000, AMD Ryzen 1000 |
| Cpu Model | Ryzen 3 |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,478) 4.4 out of 5 stars |
| Global Trade Identification Number | 04718017924986 |
| Graphics Card Interface | PCI Express |
| Item Dimensions L X W X H | 24.4L x 4.5W x 24H centimetres |
| Item Type Name | Asus Prime B450M-A II Motherboard Socket (PC) AMD AM4 Form Factor (Details) Micro-ATX Motherboard Chipsat |
| Item Weight | 600 Grams |
| Main Power Connector Type | 24-Pin |
| Manufacturer | Asus |
| Manufacturer Part Number | 90MB15Z0-M0EAY0 |
| Memory Clock Speed | 4400 MHz |
| Memory Storage Capacity | 128 GB |
| Model Name | PRIME B450M-A II |
| Model Number | 90MB15Z0-M0EAY0 |
| Number Of Ethernet Ports | 1 |
| Number Of Items | 1 |
| Number Of Ports | 12 |
| Platform | Windows 10 |
| Processor Socket | Socket AM4 |
| Product Warranty | 3 Years Manufacturer |
| Ram Memory Maximum Size | 128 GB |
| Ram Memory Technology | DDR4 |
| System Bus Standard Supported | SATA 3 |
| Total Pcie Ports | 4 |
| Total Sata Ports | 6 |
| Total Usb Ports | 12 |
| Unit Count | 1.0 count |
| Upc | 192876924983 |
| Usb 2 0 | 2 |
User
Amazing
Amazing
User
Excellent budget motherboard with nice io
My ryzen 5600 worked straight out the box!Had to get this one due to the board I was originally getting didn’t have next day. Therefore ordered this instead.Was surprised to see it was ryzen 5000 ready with a sticker showing on the box. Was prepared to use the built in bios flash back.Nice to have all usb 3 / 3.2 ports on the back. And the addition of NVME drives. Which I will be getting soon.Really simple board to wire up and was fun to move to amd after using intel for years.Will enjoy this board until I need to upgrade my 1070 in the coming year or 2 which will be replaced for one with PCI-E Gen 4 to maximise performance for a newer GPU5 stars all day.
User
Great! but a few minor issues
motherboard works extremely well and is great value for money, but when you plug in the gpu it is not easy to plug in my wifi card. one slot is completely blocked off and the other when the card is in presses against my cpu. but apart from that, this board has amaxing value
User
Sturdy and relatively cheap
Good value for money if you want a cheap MB that does just that. It's quite sturdy and easy to install if you follow the instructions. Got decent ports at the back.
User
full specs
CPUAMD AM4 Socket for AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors ** Refer to www.asus.com for CPU support listChipsetAMD B450Memory3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors4 x DIMM, Max. 128GB, DDR4 4400(O.C)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2800(O.C.)/2666/2400/2133 MHz Un-buffered Memory *Dual Channel Memory ArchitectureECC Memory (ECC mode) support varies by CPU.* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).* The maximum memory frequency supported varies by processor.GraphicIntegrated Graphics in the 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors *1 x D-Sub1 x DVI-D1 x HDMI 2.0b*Graphics specifications may vary between CPU types.Expansion Slots3rd/2nd/1st Gen AMD Ryzen™ Processors1 x PCIe 3.0 x16 (x16 mode)2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics Processors1 x PCIe 3.0 x16 (x8 mode)AMD Athlon™ with Radeon™ Vega Graphics Processors1 x PCIe 3.0 x16 (x4 mode)AMD B450 chipset2 x PCIe 2.0 x1StorageTotal supports 1 x M.2 slot(s) and 6 x SATA 6Gb/s ports3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics : *11 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)Athlon™ with Radeon™ Vega Graphics Processors : *11 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA mode)3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors :2 x SATA 6Gb/s port(s),Support Raid 0, 1, 10AMD B450 chipset :4 x SATA 6Gb/s port(s),Support Raid 0, 1, 10LANRealtek® RTL8111HASUS LANGuardAudioRealtek ALC887/897 7.1-Channel High Definition Audio CODEC *- Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playbackAudio Feature :- LED-illuminated design- Audio Shielding- Dedicated audio PCB layers- Premium Japanese audio capacitors* Choose the chassis with HD audio module in front panel to support 8-channel audio output.USB PortsRear USB Port ( Total 6 )2 x USB 3.2 Gen 2 (up to 10Gbps) port(s)(2 x Type-A)4 x USB 3.2 Gen 1 port(s)(4 x Type-A)Front USB Port ( Total 6 )2 x USB 3.2 Gen 1 port(s)4 x USB 2.0 port(s)Software FeaturesASUS Exclusive SoftwareArmoury Crate- AURA Creator- AURA SyncAI Suite 3- Performance and Power Saving UtilityTurboV EVOEPUDIGI+ VRMFan Xpert 2+PC Cleaner- EZ update- System InformationASUS CPU-ZAI ChargerASUS EZ InstallerDAEMON ToolsNorton Anti-virus software (Free Trial for 60 days)WinRARUEFI BIOSASUS EZ DIY- ASUS CrashFree BIOS 3- ASUS EZ Flash 3- ASUS UEFI BIOS EZ ModeASUS Special FeaturesASUS 5X PROTECTION III- ASUS DIGI+ VRM- ASUS LANGuard- ASUS Overvoltage Protection- ASUS SafeSlot Core- ASUS Stainless-Steel Back I/OASUS Q-Design- ASUS Q-DIMM- ASUS Q-SlotASUS Thermal Solution- Aluminum heatsink designASUS EZ DIY- BIOS FlashBack™ button- BIOS FlashBack™ LEDAURA Sync- AURA RGB headerASUS Lighting ControlBack I/O Ports1 x PS/2 keyboard/mouse combo port(s)1 x DVI-D1 x D-Sub1 x HDMI1 x LAN (RJ45) port(s)2 x USB 3.2 Gen 2 (teal blue) (2 x Type-A)4 x USB 3.2 Gen 1 (blue) Type-A3 x Audio jack(s)1 x BIOS FlashBack™ Button(s)Internal I/O Ports1 x CPU Fan connector(s) (1 x 4 -pin)2 x Chassis Fan connector(s) (2 x 4 -pin)1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s) (19-pin)2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)1 x M.2 Socket 3 with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)1 x SPI TPM header1 x COM port(s) connector(s)6 x SATA 6Gb/s connector(s)1 x S/PDIF out header(s)1 x 24-pin EATX Power connector(s)1 x 8-pin ATX 12V Power connector(s)1 x Front panel audio connector(s) (AAFP)1 x System panel(s)1 x Clear CMOS jumper(s)1 x COM port header1 x Speaker connector1 x RGB HeaderAccessoriesUser's manualI/O Shield2 x SATA 6Gb/s cable(s)1 x M.2 Screw Package1 x Supporting DVDBIOS256 Mb Flash ROM, UEFI AMI BIOSOperating SystemWindows® 10 64-bitWindows® 7 64-bit *2Form FactormATX Form Factor9.6 inch x 9.5 inch ( 24.4 cm x 24 cm )Note1*The M.2 slot shares bandwidth with the SATA6G_5/6 ports, and therefore the SATA6G_5/6 ports cannot be used when an M.2 device is installed.2*To support Windows 7 64-bit, please install an AMD Ryzen™ 2nd Generation or Ryzen™ 1st Generation Processor.
User
Great
It is holding my pc parts in place very nicely, nothing is falling out. It works great and has amazing settings and very easy to use on my pc tbh. It is worth buying :) However, one thing is that the usb-c I accidentally broke which is my fault but also kind of the motherboard since the black piece was not glued onto the motherboard.
User
Lighting
only issue ive had is with the lighting on the board, this my be user error but doesnt seem like theres anyway to change/turn off the lighting. Other than that good MB does what it's supposed to.
User
I highly recommend it
I highly recommend it
User
Good product...
Average product...
User
ok
ok
User
Good overall
Great mobo for a starter build.
User
Calidad-Precio de entrada
Es muy buena relación Calidad-Precio para una PC de entrada
User
Vale a compra
Produto de qualidade. Grande, acomoda fácil o meu setup pro PC. Muito boa a compra
Trustpilot
2 months ago
2 months ago