1.ACアダプタを2000円
<iframe style="width:120px;height:240px;" marginwidth="0" marginheight="0" scrolling="no" frameborder="0" src="//rcm-fe.amazon-adsystem.com/e/cm?lt1=_blank&bc1=000000&IS2=1&bg1=FFFFFF&fc1=000000&lc1=0000FF&t=kitaikoku-22&o=9&p=8&l=as4&m=amazon&f=ifr&ref=as_ss_li_til&asins=B06XGBL2QQ&linkId=71b56c040a764abc57760062add30ce7"></iframe>
2.バッテリが無いのは不便なので
<iframe style="width:120px;height:240px;" marginwidth="0" marginheight="0" scrolling="no" frameborder="0" src="//rcm-fe.amazon-adsystem.com/e/cm?lt1=_blank&bc1=000000&IS2=1&bg1=FFFFFF&fc1=000000&lc1=0000FF&t=kitaikoku-22&o=9&p=8&l=as4&m=amazon&f=ifr&ref=as_ss_li_til&asins=B01N0ZT4QO&linkId=740dc403e8c9986afa31689be5058838"></iframe>
3.RAMを8GB化
<iframe style="width:120px;height:240px;" marginwidth="0" marginheight="0" scrolling="no" frameborder="0" src="//rcm-fe.amazon-adsystem.com/e/cm?lt1=_blank&bc1=000000&IS2=1&bg1=FFFFFF&fc1=000000&lc1=0000FF&t=kitaikoku-22&o=9&p=8&l=as4&m=amazon&f=ifr&ref=as_ss_li_til&asins=B00LHYO7SY&linkId=609e7803561c15d0bfac9f6a8e9de964"></iframe>
4.最終的に、SSDですね。
<iframe style="width:120px;height:240px;" marginwidth="0" marginheight="0" scrolling="no" frameborder="0" src="//rcm-fe.amazon-adsystem.com/e/cm?lt1=_blank&bc1=000000&IS2=1&bg1=FFFFFF&fc1=000000&lc1=0000FF&t=kitaikoku-22&o=9&p=8&l=as4&m=amazon&f=ifr&ref=as_ss_li_til&asins=B071GN53NW&linkId=16daba58e7f6a907432e69154d70d431"></iframe>