SKU: 3456034721

300w power supply unit, delta

Sale price$145.84 Regular price$162.04
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

300w power supply unit, deltaThe QNAP 300W Power Supply is a dependable, high performance solution designed to keep your QNAP rack mounted devices powered with precision and reliability. Built to support continuous operation in demanding environments, this power supply ensures stable voltage delivery, minimizes downtime, and protects critical data through steady, clean power. Engineered for enterprise environmentsfrom small offices to data centersthis unit delivers consistent

The QNAP 300W Power Supply is a dependable, high-performance solution designed to keep your QNAP rack-mounted devices powered with precision and reliability. Built to support continuous operation in demanding environments, this power supply ensures stable voltage delivery, minimizes downtime, and protects critical data through steady, clean power. Engineered for enterprise environments—from small offices to data centers—this unit delivers consistent performance and rugged durability, making it an essential upgrade or replacement for any QNAP rack system that demands dependable power without compromise. With its robust design and thoughtful engineering, the QNAP 300W Power Supply helps you maintain uptime, maximize throughput, and safeguard your NAS and storage infrastructure against unexpected power interruptions.

  • Reliable, continuous operation: Engineered for steady power delivery to support critical storage workloads, the QNAP 300W Power Supply minimizes performance fluctuations and unplanned downtime in busy rack environments. It helps keep servers, NAS, and storage appliances running smoothly, even during peak workloads, so you can rely on dependable access to data and services.
  • Designed for QNAP rack-mounted devices: This power supply is built with the precision, connectors, and form factor favored by QNAP rack systems. Its compact footprint fits neatly into standard rack configurations, enabling straightforward deployment in existing infrastructures and ensuring compatibility with a wide range of QNAP chassis and expansion setups.
  • Efficient power delivery and thermal management: The unit emphasizes efficient energy use and thoughtful thermal design to maintain optimal operating temperatures. By delivering clean, just-right power with controlled heat output, it supports longer component life, quieter operation, and reliable performance under sustained load—critical for 24/7 NAS and virtualization workloads.
  • Comprehensive safety and protection features: Built with a suite of protections—including over-voltage, over-current, and short-circuit protection—the QNAP 300W Power Supply guards both the power source and connected equipment. These safeguards reduce risk during power surges or faults, helping preserve data integrity and minimize repair costs.
  • Ease of maintenance and replacement: Designed for straightforward installation and quick field replacement, this power supply simplifies maintenance of busy racks. Clear mounting, standardized connectors, and robust build quality help technicians swap units with minimal downtime, keeping your environment resilient and service-ready.

Technical Details of QNAP 300W Power Supply

  • Power Output: 300W continuous power delivery for reliable operation of rack-mounted QNAP devices.
  • Form Factor: Rack-mounted power supply designed for seamless integration into QNAP chassis and storage racks.
  • Input Voltage Range: 100-240V AC, 50-60 Hz, enabling compatibility with global power systems and ensuring stable performance across regions.
  • Protections: Integrated over-voltage, over-current, and short-circuit protection to safeguard equipment and maintain data integrity during power irregularities.
  • Operational Efficiency and Design: Optimized for quiet, dependable operation with thermal-aware engineering to minimize heat buildup in dense rack environments.

How to install QNAP 300W Power Supply

  • Power down the host system and disconnect it from all power sources before starting the installation process.
  • Access the PSU bay in your QNAP rack chassis and prepare the area by ensuring the bay is clear and the surrounding components are unobstructed.
  • If replacing an existing unit, release the retention latch or mechanism and carefully slide the old power supply out of the bay.
  • Align the QNAP 300W Power Supply with the bay rails, then slide it into place until it seats firmly. Verify that any connectors align with the corresponding slots and that the unit is securely seated.
  • Reconnect any required power connectors and secure the unit with the provided fasteners or latches as specified by your chassis design.
  • Restore power to the system, power it on, and check the status indicators to confirm normal operation and stable power delivery to the rack-mounted devices.

Frequently asked questions

  • Is the QNAP 300W Power Supply compatible with all QNAP rack-mounted devices? It is designed for QNAP rack-mounted devices. To ensure compatibility with your specific model, consult the product documentation or contact your vendor for model-by-model confirmation.
  • What protections does this power supply provide? The unit includes protections such as over-voltage, over-current, and short-circuit protection to safeguard connected equipment and preserve data integrity during power disturbances.
  • Can I replace the power supply while the system is running? For safety and to prevent damage, perform power-down procedures before replacing or installing the unit unless your chassis explicitly supports hot-swapping and the manufacturer documentation confirms it is allowed.
  • What maintenance or warranty coverage is available? Warranty terms and coverage vary by region and retailer. Check the seller’s warranty policy and your regional support options for details on replacements, service windows, and eligibility.
  • Where can I find installation and compatibility details? The official QNAP product manuals and the reseller documentation provide model-specific compatibility notes, mounting instructions, and safety guidelines essential for proper installation.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3456034721

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4.8 ★★★★★
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Blonde Aggie
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★★★★★ 5
Works great for scent work! Bounce is great for air retrieve!
Size: 2-pack, Style: Duo, Size: 2-pack, Style: Duo
My dog doesn’t know he loves them yet but I do! They are a little softer so when we do air retrieve, I don’t have to worry as much about his teeth! I’m hoping he will learn to find them by smell vs sight. We often play in the evenings and he tends to loose his ball. Love chuck it! Right now, we have about 10 chuck it balls! The tennis balls don’t work for air retrieve! Chuckit does!!! Love the thrower too! Saves my arm!!!!
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Reviewed in the United States on August 6, 2025
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None of your business
Waukegan, US
★★★★★ 3
I guess the smell is offputting
Size: 2-pack, Style: Duo
My dog loves chocolate stuff. But for some reason, wasn’t a huge fan of these balls. She played with them a little bit, but they’re not her favorite.
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Reviewed in the United States on December 30, 2025
M
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Mitch
Alexandria, US
★★★★★ 5
Our German Sheppard loves these
Size: Medium
These cost a bit more than tennis balls, but they are so much nicer and longer lasting. For starters, they stay cleaner than tennis balls because they’re smooth rubber. Dirt won’t build up on them and if anything does stick, like grass or soil, it falls off once the dog slobber dries. They’re also thick, so they don’t fall apart or blow out like a normal tennis ball does in our dog’s jaws after 30 seconds. Our GS chomps on these like crazy and the only damage they’ve suffered is a crack that developed from the edge of the hole, but the crack is growing very slowly and none of these balls have totally failed yet. The balls do whistle when thrown ant high speed and that may help a dog track and locate it, but I’m not sure. Our neighbors hear the whistling too so it’s far from silent. Lastly the orange ball is easy to locate out in our yard, but the dark blue practically disappears.
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Reviewed in the United States on April 6, 2025
C
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Casey B
Omaha, US
★★★★★ 5
Great for smaller dogs
Size: Small
These two balls are perfect for the smaller mouthed dog that loves to play fetch. These balls are not only super durable (lots of teeth biting), but float in the baby pool we use for our miniature dachshunds. The value here is much better than you’d find anywhere else. The noise, if bitten hard enough, was “low” at best. Easy to spot/find if overthrown. Will definitely buy again once these are in bad repair; so far, so good-love these for my fur babies!
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Reviewed in the United States on October 8, 2024
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E. Schall
Pawtucket, US
★★★★★ 5
My dogs favorite balls
Size: Medium
These are great for my dog who always has to have a ball in her mouth. Not too hard so I don't have to worry about her teeth. They last for ever. They do lose their shape a little over time (like I said, she always has a ball in her mouth) they become a little oval in shape. They still bounce, she still chases it and she still chews on it so I don't think she notices or cares. I've gotten her a bag full of these over time and I have only seen one that she chewed a chunk out.
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Reviewed in the United States on September 28, 2023

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