This is a New Replacement/Upgrade Power supply for a HP Pavilion 9910 . This is a brand new aftermarket power supply with a higher maximum power rating and capacity, also this power supply offers additional power protection features. This is guaranteed to work as a direct replacement for the HP Pavilion 9910 Power Supply. Physical Measurements: Metric: 150mm x 85mm x 140mm American: Approx: 6 x 5.5 x 3.25 Actual: 5 7/8 x 3 3/8 x 5 1/2 Connectors Included: 1 x 20+4 Pin - compatible with 20 or 24 pin 1 x 4 Pin ATX-12V 3 x 15 Pin SATA 3 x 4 Pin Molex 1 x 4 Pin Floppy *If you need additional connectors or different connectors, Please contact us first or make a note in the checkout. Specifications: 400 Watts Max (works with lower wattage) High Efficiency (save money) Low Noise and Ripple Fan (very quite) Energy Star Efficiency (proven efficiency and safty) Over Power protection Short Circuit Protection Over Voltage protection Meet UL 1950. CSA 22.2 Level 3 Requirement 100% Hi-pot Function (Chroma)tested 100% Burn-in under high Ambient Temperature Complies with FCC part 15J class B 115Vac Operation and CISPR22 230Vac Operation Approvals: CB, CE, FCC, TUV MTBF: 100,000 Hours Made in China Free Power Cable is included Input Details: Input Voltage: 100-120V/ 200-240V Input Frequency Range: 50/60 Hz Input Current: 10A/5A Output Voltage: +3.3V @ Min 0.3A, Max 28A +5V @ Min 1.0A, Max 36A +12V @ Min 1.0A, Max 16A -12V @ Min 0A, Max 0.8A +5VSB @ Min 0A, Max 2.0A Shipping: *All orders process and ship same day if paid by 3:00 PM EST Monday - Friday Return Policy: 30 day no hassle return policy. If you are unsatisfied or do not want the item for any reason, simply return the product for a full refund. Warranty: 1 year on parts and labor Sales Tax: Michigan residents are required to to pay 6% sales tax. International Buyers/Import Duties: International buyers are responsible for import duties in their country if they exist. Do not buy this item if there are import restrictions for the item in your country. F.A.Q - Frequently asked Questions I was wondering if this item can be used as a DIRECT (the cables just plugs in/fits straight in with no hassles) replacement for a HP Pavilion 9910 Power Supply? Yes, this power supply will fit your HP Pavilion 9910 perfectly. This will be the same size and dimensions, also this will have all the correct connectors that you need and more. This replacement unit says it is 400 watts, that is higher than what is currently in my computer, are you sure this will work? The 400 watts is a maximum output. This will work perfectly with your application. Think of it as extra power if it is needed. Otherwise it just uses the amount it needs. The values listed for output current are higher than on the original. I am assuming that this is not a problem as these values are only what it is capable of delivering, but I just wanted to make sure that this unit is definitely compatible despite the differing values. Yes, This will work perfectly as a replacement and upgrade for your HP Pavilion 9910 , this is designed to work perfect as a replacement for your unit. This is also an upgrade as it is a higher wattage; which can handle more devices: hard drives, dvd-roms, Ram or CPU if you choose to add them. This power supply also adds higher efficiency and a low noise fan. Further, this power supply is newly manufactured with newer components internally as well as over voltage protection, over power protection, short circuit protection, low noise and ripple fan, Energy star efficient. That's why this exceeds getting an exact replacement that was most likely manufactured years ago with older parts/technology; and capacitors go bad over time, even when not is use. Plus this comes with a one year manufacture warranty. HP Pavilion 9910