PRIME B450M-A/CSM

AMD AM4 Socket for 3rd/2nd/1st Gen AMD Ryzen™/2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/Athlon™ with Radeon™ Vega Graphics Processors,* Due to CPU limitation, CPU cores supported varies by processors.

AMD B450

4 x DIMM, Max. 128GB, DDR4 4400(O.C)/3466(O.C.)/3200(O.C.)/3000(O.C.)/2800(O.C.)/2666/2400/2133 MHz Un-buffered Memory,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 the Memory QVL (Qualified Vendors Lists).,* The maximum memory frequency supported varies by processor.,Dual Channel Memory Architecture,ECC Memory (ECC mode) support varies by CPU.

Integrated Graphics in the 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors,- Supports DVI-D with max. resolution 1920 x 1200 @ 60Hz,Multi-VGA output support : HDMI/DVI-D/D-Sub ports,- Supports D-sub with max. resolution 1920 x 1200 @ 60 Hz,- Supports HDMI 2.0b with maximum resolution of 4096 x 2160 @ 60 Hz

1 x PCIe 3.0/2.0 x16 (x8 mode) *¹,3rd/2nd/1st Gen AMD Ryzen™ Processors,AMD Athlon™ with Radeon™ Vega Graphics Processors,1 x PCIe 3.0/2.0 x16 (x16 mode),AMD B450 chipset,1 x PCIe 3.0/2.0 x16 (max at x4 mode),2 x PCIe 2.0 x1

3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors : ,3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics : ,1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA mode)*²,1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)*²,2 x SATA 6Gb/s port(s),,4 x SATA 6Gb/s port(s),,AMD Athlon™ with Radeon™ Vega Graphics Processors : ,AMD B450 chipset : ,Support Raid 0, 1, 10

Realtek® RTL8111H, 1 x Gigabit LAN Controller(s),ASUS LAN Guard

- LED-illuminated design - Brighten up your build with the gorgeous illuminated audio trace path.,Realtek® ALC8878-Channel High Definition Audio CODEC,* Choose the chassis with HD audio module in front panel to support 8-channel audio output.,Audio Feature :,- Audio Shielding: Ensures precision analog/digital separation and greatly reduced multi-lateral interference,- Dedicated audio PCB layers: Separate layers for left and right channels to guard the quality of the sensitive audio signals,- Premium Japanese audio capacitors: Provide warm, natural and immersive sound with exceptional clarity and fidelity

3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors :,4 x USB 3.1 Gen 1 port(s) (4 at back panel, blue),2 x USB 3.1 Gen 2 port(s) (2 at back panel, ),AMD B450 chipset :,2 x USB 3.1 Gen 1 port(s) (2 at mid-board),4 x USB 2.0/1.1 port(s) (4 at mid-board)

- Multi-language BIOS,- ASUS DIGI+ VRM: Premium components provide better power efficiency,- Stylish Fanless Design Heat-sink solution,- ASUS Fan Xpert 2+,ASUS 5X Protection III :
- ASUS SafeSlot Core: Fortified PCIe Slot prevents damage,- ASUS LANGuard: Protects against LAN surges, lightning strikes and static-electricity discharges!,- ASUS Overvoltage Protection: World-class circuit-protecting power design,- ASUS Stainless-Steel Back I/O: 3X corrosion-resistance for greater durability!,ASUS Exclusive Features :,- AI Suite 3,- Ai Charger,ASUS Quiet Thermal Solution :,ASUS EZ DIY :,- ASUS CrashFree BIOS 3,- ASUS EZ Flash 3,- ASUS UEFI BIOS EZ Mode,ASUS Q-Design :,- ASUS Q-Slot,- ASUS Q-DIMM

2 x USB 3.1 Gen 2,1 x DVI-D,1 x PS/2 keyboard (purple),1 x PS/2 mouse (green),1 x D-Sub,4 x USB 3.1 Gen 1,3 x Audio jack(s),1 x HDMI,1 x LAN (RJ45) 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 Aura RGB Strip Header,1 x TPM header,1 x USB 3.1 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.1 Gen 1 port(s) (19-pin),2 x Chassis Fan connector(s) (2 x 4-pin),6 x SATA 6Gb/s connector(s),1 x Speaker connector,2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s),1 x COM port(s) connector(s),1 x CPU Fan connector(s) (1 x 4-pin),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)

2 x SATA 6Gb/s cable(s),User´s manual,I/O Shield,1 x M.2 Screw Package,1 x Supporting DVD

128 Mb Flash ROM, UEFI AMI BIOS, PnP, SM BIOS 3.1, ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, ASUS CrashFree BIOS 3, F3 My Favorite, Last Modified log, F12 PrintScreen, ASUS DRAM SPD (Serial Presence Detect) memory information, F6 Qfan Control

Windows® 7 64-bit *³,Windows® 10 64-bit

9.6 inch x 9.5 inch ( 24.4 cm x 24 cm ),mATX Form Factor

1*Support NVMe PCIe RAID.
2*The M.2 Socket shares bandwidth with the SATA_5/6 ports, and therefore the SATA_5/6 ports cannot be used when an M.2 device is installed.
3*Install an AMD Ryzen™ 2nd Generatione or Ryzen™ 1st Generation Processors to support Windows 7 64-bit operating system.