Add four RS232 serial ports to any notebook or desktop computer using a single USB portThis 4 Port USB to RS232 Serial Hub lets you connect up to four RS232 serial devices to your Mac or PC laptop or desktop computer through a single USB port as though the computer offered built-on DB9M serial connectorsThe RS232 Serial Hub is compactly designed to preserve valuable workspace and is bus-powered to eliminate the need for an external power adapterA cost-effective solution that bridges the compatibility gap between modern USB-capable computers and legacy RS232 serial peripherals this dependable USBRS232 Serial Adapter hub is backed by StarTechcom\'s Lifetime WarrantyThe StarTechcom Advantage- Add four additional RS-232 serial ports to any computer with a free USB port- Provides serial connectivity to legacy free systems lacking RS-232 serial ports- Supports wakeup and power management modesSpecificationsPorts &38; interfacesHost interfaceUSBRS-232 ports4Hub interfacesSerialPorts quantity4FeaturesPlug and PlayYesProduct colourSilverCertificationCE FCC RoHSHousing materialPlasticHost interfaceUSBPowerPower consumption (max)15 WPower consumption (typical)1 WTechnical detailsPlug and PlayYesProduct colourSilverPerformanceCertificationCE FCC RoHSPlug and PlayYesBaud rate9216 KbitsSystem requirementsWindows operating systems supportedWindows 10Windows 10 EducationWindows 10 Education x64Windows 10 EnterpriseWindows 10 Enterprise x64Windows 10 HomeWindows 10 Home x64Windows 10 IOT CoreWindows 10 ProWindows 10 Pro x64Windows 2000Windows 2000 ProfessionalWindows 7Windows 7 EnterpriseWindows 7 Enterprise x64Windows 7 Home BasicWindows 7 Home Basic x64Windows 7 Home PremiumWindows 7 Home Premium x64Windows 7 ProfessionalWindows 7 Professional x64Windows 7 StarterWindows 7 Starter x64Windows 7 UltimateWindows 7 Ultimate x64Windows 7 x64Windows 8Windows 8 EnterpriseWindows 8 Enterprise x64Windows 8 ProWindows 8 Pro x64Windows 8 x64Windows 81Windows 81 Enterprise x64Windows 81 ProWindows 81 Pro x64Windows 81 x64Windows 98SEWindows CEWindows Vista BusinessWindows Vista Business x64Windows Vista EnterpriseWindows Vista Enterprise x64Windows Vista Home BasicWindows Vista Home Basic x64Windows Vista Home PremiumWindows Vista Home Premium x64Windows Vista UltimateWindows Vista Ultimate x64Windows XP HomeWindows XP Home x64Windows XP ProfessionalWindows XP Professional x64Mac operating systems supportedMac OS X 1010 YosemiteMac OS X 1011 El CapitanMac OS X 1012 SierraMac OS X 106 Snow LeopardMac OS X 107 LionMac OS X 108 Mountain LionMac OS X 109 MavericksLinux operating systems supportedYesOther operating systems supportedWindows XP Embedded