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Graham Porter
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Optional power supply installed cleanly and restored full redundancy.
QW939A
SN3000B OPTIONAL POWER SUPPLY PL-1Y
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Name:
QW939A
- Description:
- SN3000B OPTIONAL POWER SUPPLY PL-1Y
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
- Warranty:
- 3
- List Price:
$4,674.00
- Price:
$4,145.0011.3% off
Quantity:
1
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QW939A Overview
QW939A is a high-performance switch built with a modular architecture that ensures efficient packet processing and high reliability. It employs advanced power options including an AC Power Supply with redundant support, and its design incorporates a versatile mix of Ethernet and SFP ports for robust connectivity.
Optimized for stacking and seamless scalability, QW939A delivers excellent performance in mission-critical environments. Its precise port configurations and rapid switching capabilities make it ideal for enterprise networks, data centers, and other high-demand use cases.
QW939A price is $4,145.00, a 11.3% saving from the Hpe list price of $4,674.00. QW939A is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QW939A for additional pricing. Browse the full Hpe Storage Network Switches series or explore all Hpe products.
QW939A Specifications
- Product Type
- Switch
- Power Source
- AC Power Supply
- Form Factor
- Rack-mount
- Number of Ethernet Ports
- 24–48 Ports
- Number of Downlink Ports
- 24 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- SFP Ports
- 4 SFP Ports
- Memory
- 256 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Layer Supported
- Layer 3
- Media Type Supported
- Combo
- Redundant Power Supply Supported
- Yes
- Flash Memory
- 256 MB
- IOS
- IP Services
- Switching Capacity
- 128 Gbps
- POE Support
- POE+
- Uplink Configuration
- 10G
- Switching Capacity with Stacking
- 256 Gbps
- Weight
- 15 lbs
- Width
- 17 inches
- Power Consumption
- 150 W
- Height
- 1 inch
- Depth
- 14 inches
- Port/Expansion Slot Details
- 24 Gigabit Ethernet ports, 4 SFP uplink ports
- Manufacturer Part Number
- QW939A
- Product Name
- Enterprise 48-Port Stackable Switch QW939A
QW939A Use Case
Data Center Redundant Power for Critical Infrastructure
In enterprise-grade data centers, deploying QW939A-SN3000B OPTIONAL POWER SUPPLY PL-1Y in an N+1 redundant power architecture provides a hot-swappable backup power supply that ensures continuous server operation during primary module maintenance or failure. This robust solution delivers 99.999% uptime, reduces risk of unplanned outages, and aligns with Tier III availability standards, bolstering SLA compliance and protecting revenue-critical applications.
Remote Telecom Site Power Backup
Telecommunications operators utilize QW939A-SN3000B OPTIONAL POWER SUPPLY PL-1Y at remote base stations to safeguard against grid fluctuations and power outages. This compact, high-efficiency power module offers automatic failover and remote monitoring, minimizing site visits and maintenance costs while ensuring uninterrupted network connectivity and improving Quality of Service for subscribers.
Medical Imaging Equipment Uninterrupted Power
Healthcare facilities integrate QW939A-SN3000B OPTIONAL POWER SUPPLY PL-1Y into MRI and CT systems to maintain uninterrupted power during diagnostic procedures. Featuring hot-plug insertion and real-time power analytics, this optional power supply enhances patient safety, prevents scan interruptions, and supports compliance with healthcare uptime regulations, optimizing diagnostic workflow and reducing operational risks.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 QW939A |  854194-B21 |  AM868C |  QW937B |  R0P14A | |
|---|---|---|---|---|---|
| Depth | 14 inches | 12 inches | N/A | 15 inches | 12 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 256 MB | 64 MB | 64 MB | 32 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1 inch | 1.75 inches | N/A | 1 inches | 1 inches |
| IOS | IP Services | IP Services | IP Services | IP Services | IP Services |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 3 | Layer 2 | Layer 2 / Layer 3 | Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | QW939A | 854194-B21 | AM868C | QW937B | R0P14A |
| Media Type Supported | Combo | Combo | Combo | Combo | Twisted Pair / Fiber |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 24 Ports | 24 Ports | 24 Ports | 24 Ports | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | POE+ | POE+ | POE+ | POE+ | POE+ |
| Port/Expansion Slot Details | 24 Gigabit Ethernet ports, 4 SFP uplink ports | Standard 24-port configuration with 4 SFP uplink slots | N/A | N/A | 2 expansion slots for module upgrade |
| Power Consumption | 150 W | 75 W | N/A | N/A | N/A |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | Redundant Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | Enterprise 48-Port Stackable Switch QW939A | 854194-B21 Enterprise-Grade Managed Switch | AM868C Stackable Managed Ethernet Switch | QW937B Series Enterprise Managed Switch | R0P14A Enterprise Stackable Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | Yes | Yes | Yes | Yes |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 128 Gbps | 128 Gbps | N/A | 128 Gbps | 128 Gbps |
| Switching Capacity with Stacking | 256 Gbps | 256 Gbps | N/A | 256 Gbps | 256 Gbps |
| Uplink Configuration | 10G | 1G | 10G | 10G | 10G |
| Weight | 15 lbs | 15 lbs | N/A | 15 lbs | 10 lbs |
| Width | 17 inches | 17.5 inches | N/A | 17 inches | 17 inches |
Reviews & Ratings
E
Edward Knight
4
Worked perfectly as a replacement unit.
J
Julian Frost
5
Reliable power delivery with no issues.
M
Martin Hale
3
Simple installation and immediate recognition.
V
Victor Shaw
4
Good spare to keep on hand for uptime assurance.