Brand : ACER Adapter
Type : GSB095
Capacity : 100-240V 50-60Hz
Voltage : 19V 6.32A 120W
Encoding : ACE17270

A11-120P1A Alternate with the following models：

A11120P1A A120A003L AP.1200H.001 AP.12001.008 AP12001.009 AP12003.003 ADP-120ZB_B PA-1121-04 PA-1121-16

The product ACER A11-120P1A is perfectly compatible with the product model Acer Aspire V3-771G-9441 120W AC Charger/Cord :

Acer Aspire V3-771G-9441 Notebook
Connecter size:5.5mm*1.7mm(ref to the picture)
Outlet:3-prong
Cord Cable:US/UK/EU/AU plug
Package includes:
1 X AC Adapter
1 X Free Power cord(fit your country)

oline store:
ES : Elija la batería de ACER A11-120P1A adecuada
FR : Adaptateur pour ordinateur portable Premium ACER A11-120P1A
PL : Kup ACER A11-120P1A adapter do laptopa
US : ACER A11-120P1A laptop adapter replacement

http://pc-laptop.co/acer-power_supply-A11-120P1A-p180279.htm

Maintenance and instructions for the ACER A11-120P1A adapter:

1. Wiring is exposed. If the cable is worn in any way, this may result in some internal cable exposure. If the cable is severely worn and the cable is exposed, the adapter should be stopped.
2. The cable is broken. A cable break may occur in the flexible connector near the adapter module or connector. These flexible joints are used to bend the cable when the adapter module is wound, but may become brittle over time, causing breakage. If the cable hits the edge of an object such as a table or stool, it may also break.
3. The stitches are bent or broken. If the computer port is not properly inserted, the adapter pins may bend or break completely. Unplugging or inserting the cable at an angle may cause the center pin of the adapter to bend. If this happens frequently, the pins may break and the adapter will stop working.
4. The cable is loose. If your cable is loose, try unplugging the cable and reconnecting it to make sure it is in place. If the cable is still loose, check for broken or broken pins or connectors or cables. If the cable is damaged and it is loose, you must replace the adapter or cable.
5. The cable is worn. Cable wear is most likely to occur at either end of the cable connecting the adapter module to the connector that connects to the computer. This may be due to the number of times the cable wraps around the adapter module or the cable is subjected to any unnecessary stress.