• Fully Compliant with USB Specification v2.0 (Full-Speed) 
• UHCI / OHCI (USB1.1), EHCI (USB2.0), xHCI(USB3.0) ,TYPE-C Host Controller Compatible
• Meets EIA/TIA-232F standards
• Guaranteed 1000kbps transmission rate under loading
• Three RS232 Driver / Five RS232 Receivers
• Full-duplex transmitter and receiver (TXD and RXD)
• Six MODEM control pins (RTS, CTS, DTR, DSR, DCD, and RI)
• 5,6,7 or 8 data bits
• Odd, Even, Mark, Space, or None parity mode
• One, one and a half, or two stop bits
• Parity error, frame error, and serial break detection
• Programmable baud from 75 bps to 1M bps
• Provides RS232 power down indicator pin
• Works with existing PC COM Port software applications
• Automatic hardware flow control with CTS/RTS or DSR/DTR
• Automatic software flow control with XON/XOFF
• Supports Remote Wake-up from RS232 input signals (RI, RXD, DSR, DCD, CTS)
• Provides royalty-free Virtual COM Port (VCP) driver for:
• Windows 2000, XP, Vista, 7 / 8 and 10 (Microsoft Certified WHQL Logo Drivers)
• Windows Server 2003, 2008, 2008 R2
• Windows CE4.2, 5.0, 6.0, and Windows Embedded Compact 7
• Windows XP Embedded (XPe), Point--of-Service (WEPOS), and POS Ready
• MAC OS 8/9, OSX
• Linux/Android kernel 2.4.31 and above includes built-in driver
•  -40C to 85 C Operating Temperature
• ESD Protection for RS-232 I/O' +-15KV
• RS-232 for DTE Mode use PL2303RA Chipset
• Weight : 45g   
• Length : AUM-100-RA 35cm / AUM-100-RA-C 15cm 

• DB-9 Pin assignment

Pin1 : DCD  <== IN

Pin2 : RXD   <== IN

Pin3 : TXD    ==>  OUT

Pin4 : DTR    ==>  OUT

Pin5 : GND

Pin6 : DSR    <== IN

Pin7 : RTS     ==>  OUT

Pin8 : CTS     <== IN

Pin9 : RI        <== IN