ASUS ExpertCenter Pro ET500A B8

Windows 11 Pro - ASUS recommends Windows 11 Pro for business. (for Ryzen Series CPU)
Windows 11 Home - ASUS recommends Windows 11 Pro for business. (for Ryzen Series CPU)
Windows Server 2025 (non-Preinstall) (for EPYC 4005 series CPU)

1 x Socket AM5
AMD Ryzen™ 9000 & 8000 & 7000 Series and AMD EPYC™ 4005 Series Desktop Processors

AMD B850 Chipset

Total Slots: 4 (2-channel)
Capacity:
Maximum up to 128GB UDIMM
Memory Type:
Dual Channel DDR5 5600 ECC/non-ECC UDIMM
Memory Size:
32GB, 16GB, 8GB UDIMM

"* Refer to support page for more information
* Actual memory frequency differs from Intel CPU types and memory module. Please check Intel official site for more detail about the memory types supported by each CPU."

Total: 2
AMD Ryzen™ 9000/7000 Series and AMD EPYC™ 4005 Series Desktop Processors
Location-1: PCIe 5.0 x16 slot (supports x16 mode)
AMD Ryzen™ 8000 Series Desktop Processors
Location-1: PCIe 4.0 x16 slot (supports x8/x4 mode)*
AMD B850 Chipset
Location-2: PCIe 4.0 x16 slot (supports x4 mode)
* Specifications vary by CPU types.

Storage Controller :
Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
AMD Ryzen™ 9000/7000 Series and AMD EPYC™ 4005 Series Desktop Processors
M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
AMD Ryzen™ 8000 Series Desktop Processors
M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4/x2 mode)*
AMD B850 Chipset
4 x SATA 6Gb/s ports
AMD RAIDXpert2 Technology
Ryzen™ 9000 & 8000 & 7000 and AMD EPYC™ 4005 Series Desktop Processors Processors: RAID 0/1/5/10
** Specifications vary by CPU types.

4 x internal 3.5"/2.5" Drive bays

8x DVD+/-RW 9.5mm Optical Disk Drive (Optional)
4 in 2 Smart Card Reader (Optional)

2 x Intel 2.5Gb Ethernet

Supports up to 1 dual-slot NVIDIA^® graphics cards, including but not limited to
NVIDIA^® RTX PRO 4000 Blackwell, 24GB GDDR7
NVIDIA^® RTX PRO 2000 Blackwell, 16GB GDDR7
NVIDIA^® RTX 2000 ADA, 16GB GDDR6
NVIDIA^® A1000, 8 GB GDDR6
NVIDIA^® A400, 4 GB GDDR6
ASUS TURBO Radeon™ AI PRO R9700

To ensure optimal stability, an ambient temperature of under 25°C is recommended during heavy workloads.

1x USB 20Gbps Type-C^® port
2x USB 5Gbps ports
1x Headphone port
1x Microphone port

2 x USB 10Gbps ports (2 x Type-A)
1 x USB 10Gbps port (1 x Type-C)
1 x USB 10Gbps port (USB Type-C®) supports DisplayPort video output
3 x USB 2.0 ports (3 x Type-A)
1 x DisplayPort
1 x HDMI™ port
1 x VGA port
2 x Intel 2.5Gb Ethernet port
1 x Serial COM port
2 x Audio jacks
1 x BIOS FlashBack™ button

Front:
1 x Power Switch/LED
1 x Reset Switch
1 x HDD Access LED
Rear:
1x BIOS FlashBack^TM Button/LED

ASUS Control Center Express support

BSMI, CE, FCC, EPEAT, KCC, CCC

423mm x 190mm x 435mm
16.7" x 7.48" x 17.1"

Net Weight : 15.82KG
Gross Weight :18.51KG

300W Bronze ATX Power Supply (100-127/220-240Vac, 6-3A, 50-60Hz, Class I)
550W Gold ATX Power Supply (100-240Vac, 9-4.5A, 50-60Hz,)
750W Gold ATX Power Supply (100-240Vac, 9-4.5A, 50/60Hz)

Operation temperature: 10℃ ~ 35℃
Non operation temperature: -40℃ ~ 70℃
Non operation humidity: 20% ~ 90% ( Non condensing)

Smart Card Reader
DVD-ROM
McAfee Anti-Virus (Preinstall)
OS
Keyboard and mouse
Print port cable