Gigabyte B550 AORUS PRO AC vs A520I AC Motherboard Comparison

Gigabyte B550 AORUS PRO AC and Gigabyte A520I AC are both motherboards with the same Socket (AM4), Wi-Fi Generation (5) and Onboard USB 3.2 Gen 1 (1). The main differences are in Form factor, Chipset, Supported Memory and ECC RAM Support.

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Gigabyte B550 AORUS PRO AC	Gigabyte A520I AC
Prices (Change region) Out of Stock Free shipping $199.99 Out of Stock Free shipping $199.99 Out of Stock Free shipping $219.99 Out of Stock + $14.75 Shipping $219.99 Out of Stock Free shipping $249.90 - Buy now Show 3 more offers	Prices (Change region) In Stock $109.99 Last updated 29 minutes ago. In Stock + $5.99 Shipping $109.99 Out of Stock Free shipping $220.99
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Brand Gigabyte	Brand Gigabyte
Model B550 AORUS PRO AC	Model A520I AC GA-A520I AC
Release Date 📅 June 2020	Release Date 📅 August 2020
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★★ (3 reviews) Add a product review	User reviews ★★★☆☆ (4 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 AM4	Socket AM4
Form factor ATX	Form factor Mini ITX
Chipset AMD B550	Chipset AMD A520
Supported Memory DDR4 2133Mhz 2400Mhz 2666Mhz 2933Mhz 3200Mhz 3333Mhz 3600Mhz 4000Mhz 4400Mhz 4600Mhz 4866Mhz 5000Mhz	Supported Memory DDR4 2133Mhz 2400Mhz 2666Mhz 2933Mhz 3200Mhz 3333Mhz 3600Mhz 4000Mhz 4400Mhz 4600Mhz 4866Mhz 5000Mhz 5100Mhz
* 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 Yes * ECC memory support also depends on the CPU memory controller	ECC RAM Support No
Audio Chipset Realtek ALC1220-VB codec * The back panel line out jack supports DSD audio.	Audio Chipset Realtek ALC887
Audio Channels 2/4/5.1/7.1-channel Support for S/PDIF Out	Audio Channels 2/4/5.1/7.1-channel
LAN Chipset Realtek 2.5GbE LAN chip	LAN Chipset Realtek GbE LAN chip
Max LAN Speed 10/100/1000/2500Mbps	Max LAN Speed 10/100/1000Mbps
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 1 x HDMI port 2 x SMA antenna connectors (1T1R) 3 x USB 3.2 Gen 1 ports 1 x USB Type-C port with USB 3.2 Gen 2 support 2 x USB 3.2 Gen 2 Type-A ports (red) 6 x USB 2.0/1.1 ports 1 x Q-Flash Plus button 1 x RJ-45 port 1 x optical S/PDIF Out connector 5 x audio jacks	Back I/O Ports 1 x DisplayPort 2 x HDMI ports 4 x USB 3.2 Gen 1 ports 2 x USB 2.0/1.1 ports 1 x Q-Flash Plus button 1 x RJ-45 ports 2 x SMA antenna connectors (1T1R) 3 x audio jacks
Wireless LAN Yes	Wireless LAN Yes
Wi-Fi Generation 5	Wi-Fi Generation 5
PCI-Express x16 Slots 3	PCI-Express x16 Slots 1
PCI-Express x4 Slots 0	PCI-Express x4 Slots 0
PCI-Express x1 Slots 2	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 1
M.2 Devices support 2242 / 2260 / 2280 / 22110 - M Key 2242 / 2260 / 2280 / 22110 - M Key	M.2 Devices support 2260 / 2280 - M Key
RAM Slots 4	RAM Slots 2
Maximum Supported RAM 128 GB	Maximum Supported RAM 64 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