Compatible Models:
for Dell Optiplex 790 Small Form Factor (SFF) for Dell Optiplex 990 Small Form Factor (SFF) Connectors Included: • 1x 24-Pin ATX Motherboard Power Connector • 2x Serial ATA (SATA) Connector • 1x 4 Pin ATX +12V Power Connector • 1x MINI SATA (Internal)
Dell 3WN11 H240AS-00 power-supply Tips
1.Keep your Dell 3WN11 H240AS-00 power-supply in a dry place with room temperature. Just like other electronic devices, adapter can get damage cause by high temperature.
2. Don't shake or knock the Dell 3WN11 H240AS-00 power-supply.Improper handling may break the internal parts and circuit boards.
3.Avoid the metal tip of the adapter from getting in contact with other metal objects because it can cause short-circuiting. Your laptop might get damage when a short-circuited charger is used.
4. Don't place the Dell 3WN11 H240AS-00 power-supply in a cool place or near the air conditioner to avoid the device from getting moistened.
5.keep water away from inside the Dell 3WN11 H240AS-00 power-supply. If it is fallen into water or flooded in water, that will get into the inside of it and the adapter may not work as usual because the inside part is damaged and the electricity cann't be connected to the laptop well.
6.There's nothing worse than having a low battery and finding out your Laptop Adapter suddenly isn't working. Keep an extra Dell 3WN11 H240AS-00 power-supply on hand. If you tend to travel, keep your second charger close but in a separate location from the one you usually use. If one charger comes up missing, you'll still have a backup.