RS485-RS232

                  HSBC

HSBC, one of the largest banking   and financial services institutions in the world, serves millions of   customers through its four Global Businesses. HSBC has around 6,600 offices   in 80 countries and territories across Africa, Asia, Europe, North America and   South America, and around 60 million customers.

                  PayPal

PayPal is the faster, safer way   to send money, make an online payment, receive money or set up a merchant   account. PayPal is an American, international e-commerce business allowing   payments and money transfers to be made through the Internet. Online money   transfers serve as electronic alternatives to paying with traditional paper   methods, such as checks and money orders.

                 Alipay

Alipay.com is a third-party   online payment platform with no transaction fees. It was launched in China in   2004 by Alibaba Group and its founder Jack Ma. According to analyst research   report, Alipay has the biggest market share in China with 300 million users   and control of just under half of China's online payment market in February   2014.

          Western Union

Send a money transfer online to   your friends and family around the world with Western Union. Transfer money   to a bank account or for cash pickup. The Western Union Company is a   financial services and communications company based in the United States. Its   North American headquarters is in Meridian, Colorado, though the postal   designation of nearby Englewood is used in its mailing address. Up until it   discontinued the service in 2006, Western Union was the best-known U.S.   company in the business of exchanging telegrams.

Transfer money and pay bills   online in as little as 10 minutes with pick up at over 334000 MoneyGram agent   locations. Safe and affordable money transfer! MoneyGram International Inc.   is a money transfer company based in the United States with its headquarters   in Dallas, Texas. It has operation centers in St. Louis Park, Minnesota and   Brooklyn Center, Minnesota, a call center in Lakewood, Colorado, and regional   and local offices around the world.

            DHL Express

    DHL Express is a division of the German logistics company Deutsche Post DHL   providing international express mail services. Deutsche Post is the world's   largest logistics company operating around the world. DHL is a world market   leader in sea and air mail.

United Parcel Service of North   America, Inc., typically referred to and branded as UPS (stylized as ups), is   the largest shipment and logistics company in the world. The American global   package delivery company is headquartered in Sandy Springs, Georgia, which is   part of the Greater Atlanta metropolitan area. UPS delivers more than 15   million packages a day to more than 6.1 million customers in more than 220   countries and territories around the world.

        Fedex Corporation

FedEx Corporation is an American   global courier delivery services company headquartered in Memphis, Tennessee.   The name "FedEx" is a syllabic abbreviation of the name of the   company's original air division, Federal Express, which was used from 1973   until 2000.

        Express Mail Service

EMS is an international postal   Express Mail Service, for documents and merchandise, offered by postal   operators of the Universal Postal Union. Approved by the State Council, China   Postal Express & Logistics Co., Ltd. (“China Postal Express & Logistics”)   was co-founded by China Post Group and provincial postal companies as a   state-owned limited company in June 2010. The company is the largest   integrated express and logistics service provider with the longest history of   business operation, the widest coverage and the richest products in China.