... SSLv2/3 TLSv1 2 RS232 Output 5V@500mA to external device Supports FTP remote download High speed thermal printer ... /sec, easy load style, adjustable print gray, supports dual-layer paper, black label detection and smart paper positioning PCI ... 1mmPaper roll outside diameter: 38mm Adjustable print gray, supports dual-layer paper, black label detection and smart paper positioningLanguageSupports Chinese ( ...