ASRock B450 Gaming K4 vs B450 GAMING-ITX/AC Motherboard Comparison

ASRock B450 Gaming K4 and ASRock B450 GAMING-ITX/AC are both motherboards with the same Socket (AM4), Chipset (AMD B450) and Audio Channels (7.1 Channels). The main differences are in Form factor, Supported Memory, Audio Chipset and LAN Chipset.

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ASRock B450 Gaming K4	ASRock B450 GAMING-ITX/AC
Prices (Change region) Out of Stock Free shipping $99.99 Out of Stock Free shipping $137.56 - Buy now	Prices (Change region) Out of Stock + $0.99 Shipping $129.99 Out of Stock Free shipping $145.13 - Buy now
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Brand ASRock	Brand ASRock
Model B450 GAMING K4 Fatal1ty B450 GAMING K4 90-MXB8A0-A0UAYZ	Model B450 GAMING-ITX/AC Fatal1ty B450 Gaming-ITX/ac
Release Date -	Release Date 📅 August 2018
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★☆ (45 reviews) Add a product review	User reviews ★★★★☆ (6 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 ►
Series Fatal1ty	Series Fatal1ty
Socket AM4	Socket AM4
Form factor ATX	Form factor Mini ITX
Chipset AMD B450	Chipset AMD B450
Supported Memory DDR4 2133Mhz 2400Mhz 2666Mhz 2933Mhz 3200Mhz	Supported Memory DDR4 2133Mhz 2400Mhz 2666Mhz 2933Mhz 3200Mhz 3466Mhz
* 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 ALC892	Audio Chipset Realtek ALC1220
Audio Channels 7.1 Channels	Audio Channels 7.1 Channels
LAN Chipset Realtek RTL8111H	LAN Chipset Intel i211AT
Max LAN Speed 10/100/1000Mbps	Max LAN Speed 10/100/1000Mbps
SLI Support No	SLI Support No
CrossFire Support Yes	CrossFire Support No
RAID Support Yes	RAID Support Yes
Back Connect No	Back Connect No
Back I/O Ports 1 x DisplayPort 1 x D-Sub 1 x HDMI 1 x LAN (RJ45) 1 x PS/2 Keyboard/Mouse Combo 1 x USB 3.1 Gen 2 Type-A 1 x USB 3.1 Gen 2 Type-C 2 x USB 2.0/1.1 3 x Audio Jacks 4 x USB 3.1 Gen 1 Type-A	Back I/O Ports 2 x Antenna Ports 1 x PS/2 Mouse/Keyboard Port 1 x HDMI Port 1 x DisplayPort 1.2 1 x Optical SPDIF Out Port 2 x USB 2.0 Ports (Supports ESD Protection)* 1 x USB 3.1 Gen2 Type-A Port (10Gb/s) (Supports ESD Protection) 1 x USB 3.1 Gen2 Type-C Port (10Gb/s) (Supports ESD Protection) 2 x USB 3.1 Gen1 Ports (Supports ESD Protection) 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED) HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks) * 1 x Fatal1ty Mouse Port (USB 2.0) is included
Wireless LAN No	Wireless LAN Yes
Wi-Fi Generation -	Wi-Fi Generation 5
PCI-Express x16 Slots 2	PCI-Express x16 Slots 1
PCI-Express x4 Slots 0	PCI-Express x4 Slots 0
PCI-Express x1 Slots 4	PCI-Express x1 Slots 0
SATA 6 Gbps Ports 6	SATA 6 Gbps Ports 4
SATA Express Ports 0	SATA Express Ports 0
M.2 Ports 2	M.2 Ports 2
M.2 Devices support 2242 / 2260 / 2280 - M Key 2242 / 2260 / 2280 / 22110 - M Key	M.2 Devices support 2280 - M Key 2230 - E Key
RAM Slots 4	RAM Slots 2
Maximum Supported RAM 64 GB	Maximum Supported RAM 32 GB
Onboard USB 2.0 2	Onboard USB 2.0 1
Onboard USB 3.2 Gen 1 1	Onboard USB 3.2 Gen 1 1
Onboard USB 3.2 Gen 2 0	Onboard USB 3.2 Gen 2 0
Onboard USB 3.2 Gen 2x2 0	Onboard USB 3.2 Gen 2x2 0