*dc tip: big pin
*package: brown box
*output: 19.5V 3.34A
Packaging & Delivery
Packaging Details: 50pcs/ctn
Delivery Detail: 3-5 days
1.For PA-21 Laptop AC Adapter
2.100-240V 50-60HZ 1.5A
3.19.5V 3.34A 7.4/5.0mm octagonal tip
- Q:Samsung notebook power adapter can be used with Lenovo GM
- Power output power is not the same, or light loss of the battery, while the weight of the motherboard
- Q:The notebook power adapter indicator does not light
- First look at the socket and the adapter between the line is not short, and find an interface to try, if still not bright, probably the adapter is broken.
- Q:Dell Computer, the recent computer always appears to be unable to determine the AC adapter type
Power adapter is not appropriate, we recommend that you contact the after-sales department for your service.
- Q:Laptop power adapter Zizi current sound how is it?
- If the sound is not particularly ringing, it is normal.
The laptop's power adapter is a switching power supply. Switching power supply of high-frequency transformers in the work, due to the role of high frequency, will produce mechanical waves, because the normal work of the normal switching frequency is much higher than the human ear hearing range, it is difficult to hear, and when the load is very light, The frequency of the switch will fall within the hearing range of the human ear.
- Q:The laptop is powerless.
- For the motherboard is very expensive ah
Repair the motherboard ah
We specialize in notebook motherboards
- Q:My laptop's power adapter always has a sound what's going on?
- If you are plugged in a separate power supply notebook will not sound
It is the sound of the current, basically have, do not care
- Q:DELL notebook can not determine the AC adapter type. The power is connected and can not be charged
- That's where you have a power adapter problem. Change the power adapter. Recommended Taobao to buy, the official website more expensive.
- Q:Laptop power adapter how to use a multimeter to test is good or bad
- Moreover, many adapters are certified, this multimeter does not amount.
Many of the reasons for the failure of the adapter is precisely because the last two.
- Q:Laptop power charging interface is not appropriate, with a laptop power adapter adapter?
- 2, the current enough. The output current of the power supply can not be lower than the current of the appliance.
- Q:ASUS notebook plugged in the charger did not respond
- Either the problem of the charger is either the problem of the machine with the charger contacts
We mainly focusing in laptop AC adapters and chargers.We have at least 10 years of experience, strictly monitor our production lines to ensure every item carry the RoHS/CE/EN/FCC marks, and the defect rate lower than 0.3 percent. We also provide one-year warranty for added assurance. To benefit from us, contact us today. Your inquiries can be replied in 24 hours.
1. Manufacturer Overview
|Annual Output Value
||US$10 Million - US$50 Million
||Southeast Asia 5%
Western Europe 40%
North America 15%
South America 20%
Eastern Europe 20%
2. Manufacturer Certificates
|a) Certification Name
3. Manufacturer Capability
||81% - 90%
|No.of Employees in Trade Department
||3,000-5,000 square meters
|No. of Production Lines
||OEM Service Offered Design Service Offered Buyer Label Offered
|Product Price Range