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Description
Extreme Networks SDR-240-48 Power SupplyThe Extreme Networks SDR 240 48 Power Supply is a robust, DIN rail mounted power solution engineered for reliable performance in demanding network environments. This 240 W unit delivers a steady 55 V DC output, providing clean, stable power to a wide range of network devices while fitting neatly into standard equipment cabinets. Built for industrial use, it combines compact form factor with durable construction to support continuous operation in data
The Extreme Networks SDR-240-48 Power Supply is a robust, DIN rail-mounted power solution engineered for reliable performance in demanding network environments. This 240 W unit delivers a steady 55 V DC output, providing clean, stable power to a wide range of network devices while fitting neatly into standard equipment cabinets. Built for industrial use, it combines compact form factor with durable construction to support continuous operation in data centers, telecom closets, and edge deployments.
- High-capacity 240 W continuous output. Designed to power multiple devices or high-demand equipment in congested racks, the SDR-240-48 ensures ample headroom for even demanding configurations. Its generous power reserve helps prevent voltage droop during surge conditions or transient load spikes, keeping critical networking gear running without interruption.
- Global input compatibility for versatile deployments. The power supply accepts a broad range of input voltages including 120 V AC and 230 V AC, as well as DC inputs at 124 V DC and 370 V DC. This versatility makes it ideal for multinational installations, field upgrades, or mixed-power environments where equipment may be relocated or repurposed across regions without needing adapters or separate power rails.
- 55 V DC output designed with safety in mind. A 55 V DC output provides a safer, lower-risk power delivery to sensitive networking gear, helping to minimize shock hazards while still delivering robust performance. The regulated 55 V DC output supports consistent operation for a range of switches, routers, and telecom appliances, reducing the likelihood of voltage-related equipment resets or instability.
- DIN rail mounting for fast, tool-free installation. The SDR-240-48 is purpose-built for DIN rail integration, enabling quick installation in standard telecom and IT enclosures. The compact footprint saves valuable cabinet space, and its modular design simplifies field servicing and future upgrades, making it easier to scale your network power infrastructure as requirements evolve.
- Energy-efficient design lowers cooling costs and extends equipment life. With a focus on high efficiency, this supply minimizes heat generation within the cabinet, reducing the burden on cooling systems and contributing to a more stable thermal environment. The improved thermal performance can extend the lifespan of connected devices and decrease total cost of ownership over time.
Technical Details of Extreme Networks SDR-240-48 Power Supply
- Product type: DIN Rail Power Supply
- Model: SDR-240-48
- Brand: Extreme Networks
- Input voltage range: 120 V AC, 230 V AC, 124 V DC, 370 V DC
- Output voltage and power: 55 V DC, 240 W
- Mounting: DIN Rail compatible for quick installation in standard enclosures
- Efficiency and protection features: High-efficiency design intended to minimize waste heat and optimize energy usage (specific efficiency ratings may vary by configuration and regional standards)
- Applications: Suitable for powering a variety of networking devices, including switches, routers, and other network infrastructure components that require reliable DC power
How to install Extreme Networks SDR-240-48 Power Supply
- Prepare the enclosure: Ensure the equipment rack or cabinet has adequate space and proper airflow to accommodate the SDR-240-48 and its load. Confirm that the enclosure is grounded and compliant with local electrical safety standards.
- Power down and isolate: Before handling any power connections, switch off all power sources to the chassis and disconnect from the main power supply to prevent accidental energization.
- Mount on DIN rail: Align the SDR-240-48 with the DIN rail in the enclosure and secure it using the appropriate mounting clips or screws. Verify that the unit is firmly seated and does not slide along the rail.
- Connect input power: Attach the appropriate input connectors for your region (120 V AC or 230 V AC, or the designated DC input). Ensure correct polarity for DC inputs and use proper wire sizing and cable management to minimize resistance and heat buildup.
- Wire the output to your load: Connect the 55 V DC output to the power input terminals of your networking devices, observing correct polarity and using secure, rated connectors. Route cables to prevent interference and maintain tidy cable management within the enclosure.
- Inspect and test: Double-check all connections for tightness and correct routing. Reconnect the main power, power on the system, and verify that the SDR-240-48 powers up correctly and delivers stable 55 V DC to the connected devices. If available, monitor device indicators or use a multimeter to confirm voltage stability.
Frequently asked questions
-
Q: What devices can the SDR-240-48 power?
A: It is designed to provide 55 V DC power to networking equipment such as switches, routers, and other DC-powered devices that require a reliable 240 W supply. Always verify device voltage and current requirements against the unit’s 55 V DC, 240 W capability to ensure compatibility. -
Q: Does this power supply support both AC and DC inputs?
A: Yes. The SDR-240-48 supports multiple input configurations, including 120 V AC, 230 V AC, as well as DC inputs at 124 V DC and 370 V DC, enabling flexible deployment in diverse environments around the world. -
Q: Is the power supply suitable for DIN rail installations?
A: Absolutely. The SDR-240-48 is specifically designed for DIN rail mounting, providing a compact, space-saving power solution ideal for telecom closets, data centers, and industrial IT racks. -
Q: What are the safety benefits of a 55 V DC output?
A: A 55 V DC output reduces safety risks while delivering stable, regulated power to sensitive equipment. This voltage level is commonly used in many networking devices, balancing performance with safety in enterprise environments. -
Q: Can the SDR-240-48 help reduce energy costs?
A: Yes. Its high-efficiency design minimizes waste heat, which can lower cooling requirements in dense cabinets and reduce overall energy consumption over time without compromising performance.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.6 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Great quality and perfect for home workouts!
Style: Rack with 3 Pairs (3, 5, and 8 Pound)
I’m really happy with this dumbbell set. The weights are clearly labeled (3 lb, 5 lb, and 8 lb), which makes it super convenient to switch between exercises. The neoprene coating feels comfortable in hand and provides a good grip, even during longer workouts.
The storage stand is a big plus—it keeps everything organized and saves space, which is perfect for a small home gym. The colors are also nice and make it easy to quickly grab the weight you need.
Overall, this is a great set for beginners or anyone looking to add light strength training to their routine. Highly recommend!
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Reviewed in the United States on April 13, 2026
★★★★★ 5
I’m A PT AND USING THEM IN MY CLINIC. PLS READ HONEST AND THOROUGH REVIEW.
Style: 15 Pound, Pair
I have been a PHYSICAL THERAPIST FOR 30 YEARS and I BOUGHT THESE FOR MY CLINIC. THESE WEIGHTS ARE COVERED IN A GRIPPING MATERIAL, NEOPRENE, MAKING IT COMFORTABLE and EASIER TO USE, ALLOWS YOU TO NOT LOSE YOUR GRIP, and IT IMPROVES THE SAFETY OF THE USER. I WILL BE BUYING THE 12&20 lb sets! THE VALUE FOR YOUR MONEY IS WONDERFUL!! AMAZON BASICS REALLY CAME THROUGH. It DID NOT INCLUDE AN INSTRUCTION GUIDE TO USE WEIGHTS SAFELY AND EFFECTIVELY. STELLAR FORM IS ALWAYS ESSENTIAL.
MY WEIGHTS WENT UP TO 10 POUNDS, SO I DEFINITELY NEEDED ADDITIONAL WEIGHTS for those who can SAFELY TRANSITION . I MAINLY WORK AS A MANUAL THERAPIST …USING ONLY MY HANDS, AND MY BRAIN. TO DIAGNOSE AND TREAT ACCORDINGLY.
(**ANYONE WHO HAS BEEN TO PT KNOWS THIS KIND OF ONE ON ONE TREATMENT IS UNHEARD OF**)
I IMPLEMENTED MYOFASCIAL RELEASE, TRIGGER POINT THERAPY, DEEP TISSUE MASSAGE, AND APPROPRIATE STRETCHING AND EXERCISE . ONCE PATIENTS WERE ABLE, I INITIATED THERAPEUTIC EXERCISE. I WAS GETTING SO MANY REFERRALS THAT I MOVED FROM MY SMALL SPACE AND GOT A LARGER SPACE THAT LOOKS LIKE A TYPICAL PT CLINIC. I STILL EMPLOY ONE ON ONE TREATMENT, NO JUGGLING SEVERAL PATIENTS IN AN HOUR. I HAVE HIRED HELP TO ASSIST PATIENTS WITH EXERCISE AND STRETCHING. I PURCHASED TWO ADDITIONAL SETS ITHE SET IT I DID TO FIRST CHECK THEM OUT. I ADORE THESE AND HAVE SINCE ORDERED OTHER SETS. I LOVE TO WORKOUT AND I NEEDED TO USE THESE WEIGHTS MYSELF!! THERE ARE ALSO PATIENTS OF MINE WHO WILL PROGRESS TO THESE AS WELL. I AM SUPER IMPRESSED WITH THESE WEIGHTS AND CANNOT WAIT TO RECEIVE MY TWO OTHER SETS!! YOU WILL NOT BE DISAPPOINTED.
EVEN IF YOU SWEAT, YOU ARE STILL ABLE TO HOLD ONTO THESE WEIGHTS COMFORTABLY AND SAFELY. SAFETY IS KEY, ALWAYS. I WAS EXTREMELY DELIGHTED THAT THEY ARE SOLD AS A SET BECAUSE MANY ARE SOLD SEPARATELY. THEY FIT PROPERLY ON A UNIVERSAL WEIGHT STAND, SO THEY ARE VERY EASY TO STORE. I CANT WAIT TO GET MY OTHER SETS! IT IS REALLY SAFE AND COMFORTABLE TO USE THESE WEIGHTS.
THEY DID NOT GIVE OFF AN ODD ODOR, which is A HUGE PLUS because SOME OTHER BRANDS SMELL HEAVILY OF PLASTIC OR A CHEMICAL TYPE ODOR. THERE WAS NO ODOR AT ALL. THIS IS A HUGE PLUS. I AM COMFORTABLE SAYING THAT THESE WEIGHTS WILL LAST A LONG TIME BECAUSE OF HOW WELL THEY ARE MADE. YOU CANNOT BEAT THE PRICE EITHER!!
THESE ARE ABSOLUTELY APPROPRIATE FOR PROFESSIONAL USE, AND, THEY ARE MEANT FOR PERSONAL USE AS WELL. SOMETIMES YOU JUST CANNOT GET TO THE GYM SO THIS IS WHERE THEY ARE KEY. HAND WEIGHTS HAVE THE ABILITY TO EXERCISE EACH MUSCLE OF THE TORSO AND ARMS. THERE ARE SOME EXCELLENT WEIGHT CHARTS OUT THERE TO SHOW YOU HOW TO DO THAT. IF YOU ARE GOING TO PHYSICAL THERAPY, THEN YOUR THERAPIST CAN INSTRUCT YOU AND KEEP YOU IN GOOD FORM. YOU COULD POSSIBLY HURT YOURSELF IF YOU WORKOUT INCORRECTLY. AS FAR AS THE LOWER EXTREMITIES, YOU CAN DO GROSS MOTOR EXERCISES BY HOLDING THESE WEIGHTS TO GET YOUR LEG MUSCLES BY DOING SQUATS, WALKING LUNGES, TOE RAISES, AND MORE. I DONT BELIEVE THAT MANY PEOPLE REALIZE JUST HOW MUCH YOU CAN DO FULL BODY EXERCISES WITH JUST TWO HAND WEIGHTS.
IN CONCLUSION , THESE ARE EXCELLENT WEIGHTS THAT I WOULD RECOMMEND TO MY PATIENTS OR FRIENDS. THIS IS A HIGH QUALITY PRODUCT THAT WONT BREAK YOUR PIGGY BANK. I HIGHLY RECOMMEND VERY HIGHLY!. BUY WITHOUT RESERVATION!! A+++
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Reviewed in the United States on March 23, 2025
★★★★★ 4
Perfect size and weight with compact size
Style: Rack with 3 Pairs (3, 5, and 8 Pound)
I purchased the Amazon Basics Neoprene Dumbbell Hand Weights specifically for Pilates, and they’ve been a great addition to my routine. The size and weight are perfect for controlled movements, helping with muscle toning without feeling too bulky or awkward.
The neoprene coating gives them a comfortable, non-slip grip, which is especially important during longer sessions or when your hands get a little sweaty. They feel secure and easy to hold through a full workout.
I also like the shape—they don’t roll around on the floor, which makes transitions between exercises smoother and less frustrating. They’re compact enough to store easily but still feel durable and well-made.
Overall, these are a simple, affordable, and effective option for Pilates or light strength training. I’d definitely recommend them for anyone looking to add a little resistance to their workouts without overcomplicating things.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Well made , gym quality
Style: 10 Pound, Pair
Color is nice and bright . The weights grips are good they do not slip . Prices reflect quality
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Good purchase
Style: 3 Pound, Pair
These are just the right weight for me to start gaining muscle back in my arms, after a large weight loss. They are of good quality, they are covered in a nice rubber like coating that is soft to the touch. They are small enough that i can take them with me when I travel. My dog has got hold of them a couple times and played with them, and they held up just fine without any damage.
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Reviewed in the United States on April 28, 2026