G1179-0550WNA – 550W 2U Power Distribution Board for Cloud Servers, Data Centers, and Network Infrastructure
The G1179-0550WNA 550W 2U Power Distribution Board is optimized for cloud servers, data center equipment, and networking infrastructure that demand robust and efficient power solutions. Housed in a compact 2U chassis (265 x 77 x 84 mm), it supports a 1+1 redundant power setup to ensure continuous operation and system reliability.
This PDB provides versatile power outputs: +12V/45A, +5V/25A, +3.3V/25A, -12V/0.5A, and +5Vsb/3A. It accepts a wide input voltage range of 90–264Vac / 180–300Vdc, allowing global deployment across various power environments.
With advanced digital control and a PMBus 1.2 interface, the unit supports precise monitoring and seamless system integration. High-efficiency design—rated Platinum or Titanium—along with active PFC ensures low power loss and stable performance under demanding workloads.
Hot-swap support enables quick replacement without affecting system uptime. Intelligent fan speed control and reverse airflow design contribute to optimal thermal performance in high-density environments.
Compliant with international safety and EMC certifications including UL, CE, FCC, CB, and CCC, the G1179-0550WNA delivers safe, energy-efficient power for mission-critical IT applications.
Features
2U Dimension: 265x77x84mm(LxWxH)
Input: 90 to 264Vac,180-300Vdc
Hot-plug
Full Digital control
Efficiency: Platinum/Titanium
Active Power Factor Correction
Reverse Airflow Option
Intelligent-thermal Fan Control
1+1 2U Redundant
Applications
Server
Storage
Networking
HPC
AI Centers
Cloud Platforms
Edge Computing
GPU Workstations
Approvals
UL/cUL
CB
TuV-Mark
CCC/CQC
FCC
CE
NOM
BIS
Specifications
| Output Power (W): | 550 |
| Length (mm): | 265 |
| Width (mm): | 77 |
| Height (mm): | 84 |
| Mounting Type: | Hot pluggable |
| Output Current (V): | +12V/45A,+5V/25A,+3.3V/25A, -12V/0.5A,+5Vsb/3A |
| Minimum Output Power (W): | 0 |
| Maximum Output Power (W): | 550 |
| Minimum Input Voltage (V): | 90 |
| Maximum Input Voltage (V): | 264 |
Model Selection Comparison Table
|
Model |
Power Class | Use Role | Input | Form Factor | Recommended Use |
| G1179-0150WNA | Entry | Micro control compute | AC/DC | 1+1 2U PDB |
Monitoring & light routing |
| Mid | Edge + light VM | AC/DC | 1+1 2U PDB | Burst-capable deployment | |
| G1179-0350WNA | Upper-Mid | VM/storage light | AC/DC | 1+1 2U PDB |
Multiple services small scale |
| Mid-High | Multi-role compute | AC/DC | 1+1 2U PDB | Routing/IO concurrency | |
| G1179-0550WNA | High | Dense small servers | AC/DC | 1+1 2U PDB |
Heavier IO & VM |
| Strong | Storage + compute | AC/DC | 1+1 2U PDB | POP/CDN micro edge | |
| G1179-1300WNA | Extreme | Compute heavy nodes | AC/DC | 1+1 2U PDB |
GPU-lite workloads |
| Peak | AI/DB + compute | AC/DC | 1+1 2U PDB |
Scale-out fabrics |
Deployment Scenarios
The G1179-0550WNA reaches the high-power tier of the G1179 family — suitable for IO-active VM clusters, SDS relay and caching nodes, CDN/POP compute nodes, multi-tenant routing services, and edge cloud applications with continuous workload activity. Compared to the 460W configuration, the 550W model is better prepared for heavier concurrency, more persistent IO load, and extended burst periods, maintaining rail regulation when storage, routing, and compute tasks overlap during peak sessions. It is an ideal choice for deployment layers transitioning from lightweight micro-service clusters to mid-sized edge virtualization fabrics with mixed roles.
|
Scenario |
Load Nature | Why 550W Tier Fits |
| Multi-tenant VM clusters | High concurrency |
Comfortable burst margin |
|
SDS caching/relay |
Frequent IO peaks | Better ripple tolerance |
| CDN POP edge | Relay + cache |
Stable during traffic swings |
|
SD-WAN + security |
Encryption activity | Strong load absorption |
| Regional micro-cloud | Mixed workloads |
Sustained multi-role runtime |
|
Object storage |
Medium write load |
Maintains latency response |
Power Architecture & Reliability Design
The G1179-0550WNA is engineered for I/O-driven workloads and higher virtual machine density, delivering controlled and predictable power behavior when SSD/NVMe access, routing processes, and application compute threads operate simultaneously. Its power architecture is designed to absorb frequent load interactions without rail instability, supporting edge nodes where storage, network, and compute tasks overlap throughout long service windows.
Voltage regulation minimizes the risk of performance collapse during peak transaction periods such as cache writes, logging surges, or concurrent routing and application execution. Ripple behavior is carefully managed to preserve storage latency characteristics and network responsiveness, making the unit well suited for SDS relay, caching layers, and multi-service edge platforms that rely on clean and stable power delivery.
Thermal handling is optimized for compact environments and POP deployments where systems run continuously with limited airflow headroom. Heat distribution remains predictable under sustained duty, supporting long-term reliability without aggressive cooling strategies. PMBus telemetry provides visibility into load trends, thermal profiles, and operating patterns, enabling capacity planning, fault prediction, and service cycle forecasting across distributed edge networks. As a balanced midpoint before the 800W class, the G1179-0550WNA offers meaningful headroom for growing multi-VM and I/O-intensive deployments.
Power Operating Notes
|
Reference Condition |
Suggested Guidance |
| IO-active VM clusters |
Reserve sufficient power margin to handle transient load spikes during VM I/O and migration events. |
|
CDN/POP deployments |
Ensure proper airflow direction and intake quality for long-term unattended edge operation. |
|
SDS caching |
Monitor SSD and NVMe temperatures to prevent sustained write loads from raising local thermal stress. |
|
Routing/security |
Use PMBus telemetry to observe load, temperature, and fan behavior over time. |
|
Hybrid compute nodes |
Maintain stable grounding to reduce electrical noise during mixed compute and I/O workloads. |
|
Continuous operation |
Schedule periodic dust inspection to preserve airflow efficiency in 24/7 deployments. |
|
High burst activity |
Keep adequate thermal headroom to absorb short-duration power and workload surges. |
|
Scaling path |
Consider upgrading to an 800W PSU if future load growth or hardware expansion is expected. |
FAQ
Q1. What workloads benefit most from the 550W model?
It is best suited for IO-active virtualization clusters and SDS cache relay nodes, where concurrency and disk transactions occur frequently. Compared to lower watt models, it provides more headroom during sustained multi-service workload mixing.
Q2. Can this unit operate 24/7 under continuous edge usage?
Yes — thermal and electrical characteristics are tuned for long-duration operation, assuming proper chassis ventilation. PMBus telemetry also supports lifecycle planning and remote maintenance.
Q3. How does it compare to the 460W configuration?
G1179-0550WNA offers more IO handling capacity, better burst control, and extended concurrency support, making it a natural upgrade when workload begins to outgrow 460W edge nodes.
Q4. Redundancy support?
Fully compatible with 1+1 PDB redundancy, enabling seamless PSU failover and uninterrupted service continuity for critical edge workloads.
Q5. Good for SDS caching and relay environments?
Yes. The 550W class handles indexing and buffer write cycles more comfortably, reducing latency deviation during heavy IO windows.
Q6. Suitable for POP/CDN deployment?
Ideal for regional POP service layers, where cache relay, routing packets, and minor compute layers run simultaneously.
Q7. VM density expectations?
Supports more VM instances than 350–460W variants, especially when workloads involve persistent IO or containers running in parallel.
Q8. When should I upgrade to 800W or higher?
If workloads evolve toward distributed object storage, larger caching pools, or GPU/AI service stacking, the 800W+ tier provides greater long-term room for growth.