What's on this page?
- Chat with an expert now
- We Warranty Our Work
- Why people like you choose PowerMax
- Why buying from PowerMax is risk-free
- Pricing Protection
- Your old Apple gear has value with our trade-in programs
- Modular Cable design allows you to use only those cables needed & saves you space inside your case
- Over Current / Voltage / Power Protection, Under Voltage and Short Circuit Protection provides Maximum Safety for your critical system components
- 80 Plus Certified for 80%+ Energy Efficiency at 20%, 50% and 100% Load Condition for less Heat Generation and Lower Energy Bill
- Dedicated Single +12V Rail Offers Maximum Compatibility with Latest Components
- High quality Japanese Capacitors provide Uncompromised Performance and Reliability
Enthusiasts looking for the optimal in price performance PSU technology will find the Corsair HX series of PSUs will meet even the most demanding of required specifications. The Corsair HX 850W power supply is engineered using advanced technology and components typically found with high performance power supplies. With design features such as a dedicated, single +12V rail, the HX series offers the maximum compatibility with the latest system components. Energy efficient circuitry capable of delivering greater than 80% efficiency ratings across 20%, 50%, and 100% load conditions make the HX family of PSUs ideal for the value/quality conscious enthusiast. With a large 140mm on HX 850w diameter temperature-controlled fan that is ultra quiet, yet still more than sufficient to cool the internals of the system, reliability and stability are no longer worries for the gamer, overclocker or enthusiast and high-end system builder. Each Corsair TX power supply is backed with an industry-leading 5-year warranty and 24/7 on-demand customer service. Corsair Professional Series power supplies set a new standard by which all premium PSUs must be judged. Designed and engineered using cutting-edge technology, each Corsair Professional Series power supply is built to the highest quality standards, and delivers the features and performance that technology enthusiasts demand.
Chat With a Mac Expert Now!
Our live chat customer service team is (typically) available Monday through Friday, 6:30am to 5:30pm Pacific Standard Time.
Please feel free to chat with one of our experts, and if unavailable, contact our sales team at sales@powermax.com
Why buying from PowerMax is risk-free
If there's one thing you should know - it's PowerMax wants you to be 100% satisfied with your product. Because we sell so many different products from a variety of sources, our return policies are specific to the kind of product you ordered. Take a look:
For full details please take a look at our Returns & Errors page.
| Product Type | Return Window | Details |
|---|---|---|
| Third Party Products | 30 Day Full Refund | You can return your item for a full refund within 30 days of purchase with the exception of Apple CTO products, opened memory or opened software. Returns on all new 3rd party products must be in complete, undamaged and unmarked condition. |
| New or Factory Refurbished Apple Products | 10 Business Days | If you are not satisfied with your purchase, contact your PowerMax customer service representative within 10 business days of the receipt of the product. Provided you return an item unopened in the original box, we will exchange it or offer you a refund based on your original method of payment. A 10% open box fee will be assessed in any opened hardware or accessory. |
| Pre-Owned Macs | 90 Day Full Refund & DOA Protection | In addition to a 90-day warranty, we will guarantee any pre-owned Mac to be in good operating condition upon its arrival or we'll pick it up and send you a new one if returned within 72 hours of receipt. |
We warranty our work
In addition to the below warranties on Apple products, we're happy to facilitate communication with manufacturers of non-Apple products at any time (some of them are notoriously hard to communicate with) and do everything we can to make sure manufacturers honor that commitment.
| 1 Year AppleCare | 3 Year AppleCare Available? | 90 Day PowerMax Warranty | 6 Month Powermax Warranty Available? | |
|---|---|---|---|---|
| New Apple Computers | Yes | Yes | No | No |
| Apple Refurbished | Yes | Yes | No | No |
| PowerMax Pre-Owned |
Nope | Nope | Yes | Yes* |
For more info please check out our warranty page.
Pricing Protection
We've all been there: you pick up the latest gadget only to see it advertised by that same retailer one week later at a 25% discount. Well, with PowerMax you don't have to worry about feeling duped.
If you see a reduced price on an item you've purchased within the last 10 days just let us know and refund or credit the difference back to you.
For full details please take a look at our Returns & Errors page.
Why People Like You Chose Powermax
I would like to thank you for the prompt response to the drive situation. I received the drive on Wednesday afternoon, installed it on Thursday and everything went as smooth as could be. My experience with PowerMax has been a pleasant one, and I am looking forward to doing business again in the future. Once again thank you for all of your help.
- Thanks,
- Henderson, NV
Yes, I HAVE been pleased with your service (and have recommended you to friends and colleagues, and will continue to do so). I appreciate the update regarding my order and the expedited shipping. I will continue to do business with you in the future!
- Sincerely,
- Glendora, CA
I received the display and the last tablet today, thank you. Your service has been great; I appreciate you taking an interest in my new business, and will certainly have more purchase orders for you in the future.
- Best,
- San Rafael, CA
You can read these and more on our testimonials page.
Your old Apple gear has value with our trade-in programs

Your electronics always have value with our trade-in programs! We are one of the only places to trade-in your old Mac or iPod. Save on your new stuff by trading in those old electronics.
Mac & iPod Trade-In Program
All Mac trade-ins are handled directly through PowerMax.com. Fill out our online trade-in form and we will issue a quote for the trade-in value of your Mac (typically within 24-48 hours).














