Note: Shipping will take 25-45 days This item is in stock. Welcome your order at any time. Price information: Retail Price : US$24/Unit Shipping Cost : US$5/Unit (Shipping to worldwide,all countries) Total Cost : US$29/Unit Shopping Tips Shipping cost: Our total price include shipping cost . Shipping way and time:Your Parcel will be shipped out from China through Hongkong Small Parcel () which will take 20 to 35 days normally. We ONLY offer tracking No. for partial orders ( Total amount is above US$30 usually ) . If your order can not reach US$30 and you want to get a tracking No. ,please contact us to pay the price difference for Hongkong registered parcel. We also offer Express Delivery service. You can select the DHL or EMS. Typically takes only 7 to 15 working days. If you want to use the express service you need to pay for the price difference. Please contact us () for the exact shipping cost before you pay. Shipping address: Regardless of which address you leave on our online shop system,we will ship the item to your Paypal address ONLY, if you pay through Paypal. Wholesale price:If you need wholesale price, please contact us () for wholesale price. Item Description: Item Condition: Brand new without retail package. (In bulk) Connects up to 4 RS-232 devices to your computer at the same time. Stable and reliable chipset Moschip MCS7840. Compatible with USB 2.0 specification. RS-232 DB9 standard specification compliant. Supports transmission rate up to 230-400bps. One USB type B female and four RS232 DB9 pin male connectors available. Power LED indicator available. USB bus-powered and no need external power required for the adapter. Ideal connections to Modem, PDA, GPS, Bar Code, Digitizer, Digital Camera, Label printer ISDN terminal adapter, etc. Support Windows 2000, 2003, 2008, XP, Vista, 7, CE 5.0/6.0, Linux Kernel 2.6.x/3.x Mac OS X 10.4 to 10.8. What is in the package: USB 2.0 to 4 Port RS232 DB9 9 Pin COM Serial Adapter Converter Controller HUB1