Product Datasheet
20 May 2026
Computing System · Rackmount-System
BAX-R4UA
Series: BAX
The Avalue BAX-R4UA is a 4U industrial rackmount chassis (ordering code BCC-CASE-R4UA-01R) engineered as a flexible barebone enclosure for Avalue and standard ATX/industrial motherboards. Processor, chipset, memory and I/O are determined by the installed motherboard, while the chassis itself provides robust thermal management, expansion, and serviceability for data-center, control-room, and industrial server deployments. It supports a full-height PCIe slot via riser card, integrated hardware monitoring (CPU temperature, voltages, fan speed) and watchdog, front USB and power/reset controls with status LEDs, and a three-fan cooling layout (1 x 120mm front, 2 x 80mm rear) powered by a PS2 ATX PSU. With a 450 x 430 x 177 mm steel chassis weighing 11.4 kg, the BAX-R4UA is a dependable 4U platform for building rackmounted industrial computers.
Key Features
- 4U industrial rackmount chassis (barebone — motherboard-dependent)
- Accepts ATX / industrial motherboards (CPU, chipset, memory per MB)
- 1 x full-height PCIe slot via riser card
- Hardware monitor: CPU temperature, voltages, fan speed
- Watchdog timer (H/W reset)
- Front: 2 x USB 2.0, power & reset buttons, status LEDs
- Cooling: 1 x 120mm front fan + 2 x 80mm rear fans
- PS2 ATX PSU
- 450 x 430 x 177 mm, 11.4 kg (chassis only)
Technical Specifications
System Information
| Processor | Depend on MB |
|---|---|
| Platform Controller Hub | Depend on MB |
| System Memory | Depend on MB |
| I/O Chipset | Depend on MB |
| Watchdog Timer | H/W Reset, 1sec. ~ 65535sec./min.1sec. or 1min. step |
| H/W Status Monitor | CPU temperature monitoring, Voltages monitoring, CPU fan speed control |
Expansion
| PCIe | 1 x Full height PCIe slot (via riser card) |
|---|
Front I/O
| USB | 2 x USB 2.0 |
|---|---|
| Power Button | 1 x Power Button |
| Reset Button | 1 x Reset button |
| LED Indicator | 1 x Power status, 1 x HDD, 1 x KB-Lock |
| System Fan | Front: 1 x 12025S, Rear: 2 x 8025S |
Power Requirement
| Power Supply Unit | PS2 ATX PSU |
|---|
Mechanical & Environmental
| Operating Temp. | 0°C ~ 40°C (32°F ~ 104°F) |
|---|---|
| Storage Temp. | 20°C ~ 75°C (-4°F ~ 167°F) |
| Operating Humidity | 0% ~ 90% Relative Humidity, Non-condensing |
| Dimension (W x L x H) | 450 (D) x 430 (W) x 177 (H) mm |
| Weight | 11.4kg (Net weight, chassis only) |
Ordering Information
| Ordering Information | BCC-CASE-R4UA-01R：4U Rackmount Chassis |
|---|