Features: 100% brand new and high quality Prolific PL-2303HX controller, excellent compatibility Full compliance with USB 1.1 & 2.0 specification; Provides dual buffer for upstream and downstream data transfer Support RS232 serial interface ; Supports automatic handshake mode Supports wake-up and intelligent power management .Tiny Plug Type, No more cable Suitable for PDA and modem, phone and GPS etc ; Support Win 98 or above, for MACOS X or above (Intel based), for Linuxt 7.3/ 8.0/10 and for Linux Kernal 2.4.31 and above Package Includes: 1 x USB 2.0 to RS232 9 Pin Adapter Specifications: Item: USB 2.0 to RS232 9 Pin Adapter Chip: PL2303 Type: Male / Female Plug (Optional) Size:approx 5x 3.6cm/ 1.97x 1.42in Feature: Gold-plated Material: ABS+PC note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-2mm error due to manual measurme About shlpping: All items will be shlpped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.