Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Acer 40W Travel Charger for Acer Aspire C710 Chromebook Series: Acer Aspire C710-10074G01ii 11.6" LED Notebook, NU.SH7AA.023, Acer Aspire C710-10072G01ii 11.6" LED Notebook, NU.SH7AA.024, Acer Aspire C710-844G32ii 11.6" LED Notebook, NU.SH7AA.007, Acer Aspire C710-844G32ii 11.6" LED Notebook, NU.SH7AA.008, 100% Compatible with AK.040AP.024, ADP-40TH A, PA-1300-04, LC.ADT00.06, W10-040N1A.
Product description: Acer 40W Travel Charger for Acer Aspire C710 Chromebook Series: Acer Aspire C710-10074G01ii 11.6" LED Notebook, NU.SH7AA.023, Acer Aspire C710-10072G01ii 11.6" LED Notebook, NU.SH7AA.024, Acer Aspire C710-844G32ii 11.6" LED Notebook, NU.SH7AA.007, Acer Aspire C710-844G32ii 11.6" LED Notebook, NU.SH7AA.008, 100% Compatible with AK.040AP.024, ADP-40TH A, PA-1300-04, LC.ADT00.06, W10-040N1A.
Product feature: AC 110/220 V ( 50/60 Hz ), DC Output: 19V 2.1A 40W, Brand New OEM Product., 1 Year Warranty
Product price: $16.88
Product brand: Acer
Target attributes: Type
Answer: attribute: type
value: None
source: None