Gigabyte B450 AORUS M, AMD B450, AM4, DDR4, M.2, 2-Way CrossFire, Realtek GbE, USB 3.1 Gen2 Type-A, MicroATX
LAN: Realtek GbE LAN chip (10/100/1000 Mbit).
Expansion Slots:
1 x PCI Express x16 slot, running at x16 (PCIEX16).
* Actual support may vary by CPU.
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.
(The PCIEX16 slot is PCI Express 3.0 compliant.)
1 x PCI Express x16 slot, working at x4 (PCIEX4)
1 x PCI Express Slot x1

(PCIEX4 and PCIEX1 slots are PCI Express 2.0 compliant.)
Storage Interface
1. 1 x M.2 connector (Socket 3, M key, type 2242/2260/2280/22110 SATA and PCIe 3.0 x4/x2 SSD support)
2. 6 x SATA 6Gb/s connectors
3. Support for RAID 0, RAID 1, and RAID 10
4. * Please refer to "1-7 internal connectors", for installation notices for M.2 and SATA connectors on the manufacturer's site.
Multi GPU Technology: Support for AMD Quad-GPU CrossFire and 2-Way AMD CrossFire technologies

BIOS
1. 2 x 128 Mbit flash
2. Use of licensed AMI UEFI BIOS
3. Support for DualBIOS
4. PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Physical Features: Micro ATX Form Factor; 24.5 cm x 24.5 cm
NOTE: Due to different support conditions for Linux provided by chipset providers, download the Linux driver from the chipset vendors website.
Operating System
Support for Windows 10 64-bit
Support for Windows 7 64-bit
* To support Windows 7 64-bit, you need to install an AMD Pinnacle Ridge and Summit Ridge CPU.
* Download the "Windows USB Installation Tool" from GIGABYTE website and install it before installing Windows 7.