Asus Prime B550M-K ARGB M-ATX Motherboard

₹7,900

MRP ₹10,500 (incl. of all taxes)

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The PRIME B550M-K ARGB-CSM is a micro-ATX motherboard designed for building desktop PCs with AMD Ryzen processors. It offers reliable performance and modern features for everyday computing and DIY PC builds.

Full specifications ↓

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Highlights

AMD Socket AM4 supports AMD Ryzen 5000, 5000 G-Series, 4000 G-Series, and 3000 Series processors
Dual Channel Memory Architecture with support for up to 64GB DDR4 RAM
PCIe 4.0 x16 slot for high-speed graphics cards
Dual M.2 slots with PCIe 4.0 and PCIe 3.0 support for fast storage
Realtek 1Gb Ethernet for stable wired internet connection
4 USB 3.2 Gen 1 ports on the rear for fast data transfer
Aura Sync RGB lighting with Addressable Gen 2 headers
ASUS 5X PROTECTION III for enhanced motherboard durability

Specifications

Model	PRIME B550M-K ARGB-CSM
Socket	AMD Socket AM4
CPU	AMD Socket AM4 for AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors*
Chipset	AMD B550 Chipset
Memory	2 x DIMM slots, Max. 64GB, DDR4 5100(OC)/4866(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133, Un-buffered Memory*
Dual Channel Memory Architecture	Dual Channel Memory Architecture
Graphics	1 x DisplayPort 1 x HDMI™ port*
Expansion Slots	AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors 1 x PCIe 4.0 x16 slot (supports x16 mode) AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors 1 x PCIe 3.0 x16 slot (supports x16 mode) AMD B550 Chipset 1 x PCIe 3.0 x1 slot
Storage	Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports*
M.2_1 slot	AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 & SATA modes)
M.2_2 slot	AMD B550 Chipset M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes)
Ethernet	1 x Realtek 1Gb Ethernet
Wireless & Bluetooth	USB
Rear USB	4 x USB 3.2 Gen 1 (5G) ports (4 x Type-A) 2 x USB 2.0 ports (2 x Type-A)
Front USB	1 x USB 3.2 Gen 1 (5G) connector (supports USB Type-C®) 1 x USB 3.2 Gen 1 (5G) header supports 2 additional USB 3.2 Gen 1 ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports
Audio	Realtek 7.1 Surround Sound High Definition Audio CODEC*
Back Panel I/O Ports	4 x USB 3.2 Gen 1 (5G) ports (4 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x DisplayPort 1 x HDMI™ port 1 x Realtek 1Gb Ethernet port 3 x Audio jacks 1 x PS/2 Keyboard/Mouse combo port
Internal I/O Connectors	Fan and Cooling related 1 x 4-pin CPU Fan header 2 x 4-pin Chassis Fan headers Power related 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector Storage related 2 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 3.2 Gen 1 (5G) connector (supports USB Type-C® ) 1 x USB 3.2 Gen 1 (5G) header supports 2 additional USB 3.2 Gen 1 ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports Miscellaneous 3 x Addressable Gen 2 headers 1 x Clear CMOS header 1 x COM Port header 1 x Front Panel Audio header (AAFP) 1 x S/PDIF Out header 1 x Speaker header 1 x SPI TPM header (14-1 pin) 1 x 10-1 pin System Panel header
Special Features	ASUS 5X PROTECTION III - DIGI+ VRM - LANGuard - Overvoltage Protection - SafeSlot Core - Stainless-Steel Back I/O ASUS Q-Design - Q-DIMM - Q-LED Core - Q-Slot ASUS Thermal Solution - Aluminum heatsink design Aura Sync - Addressable Gen 2 headers
Software Features	ASUS Exclusive Software Armoury Crate - Aura Creator - Aura Sync AI Suite 3 - Performance And Power Saving Utility TurboV EVO EPU DIGI+ VRM Fan Xpert 2+ - EZ update ASUS CPU-Z IT Management software supported - ASUS Control Center Express(ACCE) Norton 360 Deluxe (60 Days Free Trial) WinRAR UEFI BIOS ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 - ASUS UEFI BIOS EZ Mode
BIOS	128 Mb Flash ROM, UEFI AMI BIOS
Manageability	WOL by PME, PXE
Form Factor	micro-ATX Form Factor 9.6 inch x 8.7 inch ( 24.4 cm x 22.1 cm )
Operating System	Windows® 11, Windows® 10 64-bit

Who should buy it

This motherboard is ideal for users building a new PC with AMD Ryzen processors who want a balance of performance and features. It may not be the best choice for those needing support for older Intel processors or specific Wi-Fi capabilities.

Compatibility

Works with AMD Ryzen 5000 Series, 5000 G-Series, 4000 G-Series, and 3000 Series desktop processors. Requires DDR4 memory and supports PCIe 4.0 and PCIe 3.0 storage devices. Compatible with Windows 11 and Windows 10 64-bit operating systems.

AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors
AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors

What's in the box

2 x SATA 6Gb/s cables
1 x I/O Shield
1 x Screw package for M.2 SSD
1 x ACC Express Activation Key Card
1 x User guide

Frequently asked questions

What is the maximum RAM capacity supported by the PRIME B550M-K ARGB-CSM?

The motherboard supports up to 64GB of DDR4 memory with Dual Channel Memory Architecture.

Does the PRIME B550M-K ARGB-CSM support PCIe 4.0 for M.2 slots?

M.2_1 slot supports PCIe 4.0 x4 mode for faster storage.

Can the PRIME B550M-K ARGB-CSM be used with AMD Ryzen 5000 series processors?

Yes, it supports AMD Ryzen 5000 Series desktop processors.

What is the difference between the M.2_1 and M.2_2 slots on the PRIME B550M-K ARGB-CSM?

M.2_1 supports PCIe 4.0 x4 mode while M.2_2 supports PCIe 3.0 x4 mode.

How many USB 3.2 Gen 1 ports does the PRIME B550M-K ARGB-CSM have?

It has 4 USB 3.2 Gen 1 (5G) ports on the rear panel.

What is the purpose of the ASUS Control Center Express software?

ASUS Control Center Express (ACCE) is an IT management software supported by the motherboard.

What is the form factor of the PRIME B550M-K ARGB-CSM?

It has a micro-ATX form factor measuring 9.6 inch x 8.7 inch (24.4 cm x 22.1 cm).

Brand warranty: as per manufacturer from the manufacturer — TechCure India helps you with the claim.

Why buy from TechCure India

Genuine product with brand warranty
GST invoice on every order
Insured delivery across India
Free compatibility check before dispatch — or build a full PC with our PC Builder

Specifications

Brand	ASUS
Category	Motherboard
Model / MPN	PRIME B550M-K ARGB-CSM
Model	PRIME B550M-K ARGB-CSM
Socket	AMD Socket AM4
CPU	AMD Socket AM4 for AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors*
Chipset	AMD B550 Chipset
Memory	2 x DIMM slots, Max. 64GB, DDR4 5100(OC)/4866(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133, Un-buffered Memory*
Dual Channel Memory Architecture	Dual Channel Memory Architecture
Graphics	1 x DisplayPort**
Expansion Slots	AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors
Storage	Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports*
M.2_1 slot	AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors
M.2_2 slot	AMD B550 Chipset
Ethernet	1 x Realtek 1Gb Ethernet
Wireless & Bluetooth	USB
Rear USB	4 x USB 3.2 Gen 1 (5G) ports (4 x Type-A)
Front USB	1 x USB 3.2 Gen 1 (5G) connector (supports USB Type-C®)
Audio	Realtek 7.1 Surround Sound High Definition Audio CODEC*
Back Panel I/O Ports	4 x USB 3.2 Gen 1 (5G) ports (4 x Type-A)
Internal I/O Connectors	Fan and Cooling related
Special Features	ASUS 5X PROTECTION III
Software Features	ASUS Exclusive Software
BIOS	128 Mb Flash ROM, UEFI AMI BIOS
Manageability	WOL by PME, PXE
Form Factor	micro-ATX Form Factor
Operating System	Windows® 11, Windows® 10 64-bit
Condition	New, sealed box
Warranty	Manufacturer warranty · details
Invoice	GST tax invoice (input credit available)
Delivery	Insured shipping to every serviceable pin code in India