ASRock B850M Pro-A vs B850M Challenger Motherboard Comparison

ASRock B850M Pro-A and ASRock B850M Challenger are both motherboards with the same Socket (AM5), Form factor (Micro ATX) and Chipset (AMD B850). The main differences are in Supported Memory, PCI-Express x16 Slots, PCI-Express x4 Slots and PCI-Express x1 Slots.

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ASRock B850M Pro-A	ASRock B850M Challenger
Prices (Change region) In Stock + $0.99 Shipping $129.99 In Stock $158.56	Prices (Change region) Out of Stock + $0.99 Shipping $119.99
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Brand ASRock	Brand ASRock
Model B850M Pro-A	Model B850M Challenger
Release Date 📅 January 2025	Release Date -
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews Add a product review
Price history View Details ►	Price history View Details ►
Compatible PC parts Processors ► Memory ► Cases ► CPU Coolers ►	Compatible PC parts Processors ► Memory ► Cases ► CPU Coolers ►
Socket AM5	Socket AM5
Form factor Micro ATX	Form factor Micro ATX
Chipset AMD B850	Chipset AMD B850
Supported Memory DDR5 4400Mhz 4800Mhz 5200Mhz 5600Mhz 6000Mhz 6200Mhz 6400Mhz 6600Mhz 6800Mhz 7000Mhz 7200Mhz 7600Mhz 7800Mhz 8000Mhz	Supported Memory DDR5 4400Mhz 8000Mhz
* High clock speeds may require enabling the XMP profile in the motherboard BIOS ** RAM support may also depend on the CPU memory controller
ECC RAM Support No	ECC RAM Support No
Audio Chipset Realtek ALC897	Audio Chipset -
Audio Channels 7.1 Channels	Audio Channels -
LAN Chipset Dragon RTL8125BG	LAN Chipset -
Max LAN Speed 2.5Gbps	Max LAN Speed -
SLI Support No	SLI Support No
CrossFire Support No	CrossFire Support No
RAID Support Yes	RAID Support Yes
Back Connect No	Back Connect No
Back I/O Ports 2 x Antenna Mounting Points 1 x HDMI Port 1 x DisplayPort 1.4 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) 1 x USB 3.2 Gen2 Type-C Port 2 x USB 3.2 Gen1 Ports 4 x USB 2.0 Ports 1 x RJ-45 LAN Port 1 x BIOS Flashback Button HD Audio Jacks: Line in / Front Speaker / Microphone	Back I/O Ports -
Wireless LAN No	Wireless LAN No
PCI-Express x16 Slots 1	PCI-Express x16 Slots 2
PCI-Express x4 Slots 1	PCI-Express x4 Slots 0
PCI-Express x1 Slots 0	PCI-Express x1 Slots 1
SATA 6 Gbps Ports 4	SATA 6 Gbps Ports 4
SATA Express Ports 0	SATA Express Ports 0
M.2 Ports 4	M.2 Ports 3
M.2 Devices support 2280 - M Key 2280 - M Key 2280 - M Key 2230 - E Key	M.2 Devices support 2280 - M Key 2280 - M Key 2230 - E Key
RAM Slots 4	RAM Slots 4
Maximum Supported RAM 256 GB	Maximum Supported RAM 256 GB
Onboard USB 2.0 2	Onboard USB 2.0 2
Onboard USB 3.2 Gen 1 2	Onboard USB 3.2 Gen 1 1
Onboard USB 3.2 Gen 2 1	Onboard USB 3.2 Gen 2 1
Onboard USB 3.2 Gen 2x2 0	Onboard USB 3.2 Gen 2x2 0