4 layer external hard disk circuit board

{"cid":"91224204","title":"4 Layers Impedance-controlled Multilayer Rigid Board For Custom Communication Equipment","imgUrl":"https:\/\/img.chinax.com\/nimg\/6d\/28\/eaa594abb43f174e21a31abfde58-200x200-1.jpg","attrs":{"Price":"Based on Gerber Files","Brand Name":"xingqiang","Model Number":"As Per Customer's Model","Minimum Order Quantity":"Sample,1 pc(5 square meters)","Delivery Time":"NA","Certification":"ISO 9001 \/ RoHS \/UL \/ IATF 16949 (automotive)","Place of Origin":"China","Payment Terms":",T\/T,Western Union","Supply Ability":"100000\u33a1\/Month","Product":"Multi-layer PCB","Min Hole Size":"0.1mm","Materila":"FR4","Copper Overall":"0.5-5oz","Pcba Standard":"IPC-A-610E","Pcba Customization":"BOM List","Minimum Line Space":"3mil (0.075mm)","Board Size":"Customized","Board Thinkness":"0.2-5.0Mm","Quotation Needed":"Gerber Files","Surface Finishing":"HASL\/OSP\/ENIG","Pcb Layer":"2\/4\/6\/8\/10 or Tailored"}}

{"cid":"91226090","title":"6 Layer PCB","imgUrl":"https:\/\/img.chinax.com\/nimg\/64\/c2\/c14787128d28bc9a27b4d44ea231-200x200-1.jpg","attrs":{"Price":"negotiate","Brand Name":"JQPCB","Model Number":"6L-PCB-1.6mm","Minimum Order Quantity":"1PCS","Delivery Time":"5-15 Werktage, Eilbestellung m\u00f6glich","Min Line Width":"Spacing | 3mil","Finished Thickness":"1.6mm","Certification":"GB\/T 19001-2016\/IS0 9001:2015","MOQ":"1 Piece","Solder Mask Color":"Green, Black, Blue, Red","Payment Terms":"L\/C,D\/A,D\/P,T\/T","Layer Count":"6 Layers","Surface Finish":"Immersion Gold, OSP, HASL","Copper Weight":"1oz","Place of Origin":"China","Application":"Electronics, Industrial Control","Supply Ability":"20000 Quadratmeter \/ Monat","Material":"FR4","Board Type":"Multilayer PCB","Min Hole Size":"0.15mm","Packaging Details":"Vakuumverpackung + Antistatikbeutel, Trockenmittel, Temperaturanzeigekarte, Karton"}}