The portable Thunderbolt? 2 PCIe expansion box provides an additional PCIe slot for systems that do not support or have enough available space for expansion cards. The external Thunderbolt 2 connection allows you to daisy-chain up to 5 additional Thunderbolt devices, making this the ideal plug and play companion especially when you have to take your system with you. Replacing the card is a simple matter of removing three hand tightening screws, so no tools are required. FeaturesTwo Thunderbolt? 2 ports for lightning fast speeds of up to 20Gb/s1 PCIe (x16) slot supporting half-length, full-height, double-width cards4 lane PCI Express 2.0 compliant interface at 5.0GbpsRemovable back panel for double-width cardsDaisy-chain up to 6 Thunderbolt? devicesDurable and rugged aluminum casingNo tools required for installationModel No.AKiTiO Thunder2 PCIe BoxPart No.T2PC-TIACertificationsCEFCCThunderbolt? technologyCase materialHigh quality aluminum with metal chassisApplication1 x PCIe cardSupports half-length, full-height and double-width cardsPCIe (x16) slot provides a maximum of 25WDoes NOT support graphic cardsRAID modeNot applicableInterface/Ports2x Thunderbolt? 2 ports1x internal PCIe (x16) slot with 4 lane PCI Express interfaceData transferThunderbolt? 2 interface up to 20GbpsSystem requirements (PC)Not supportedSystem requirements (Mac)Mac OS 10.9 or aboveComputer with Thunderbolt connectorSystem environmentOperating Temperature: 5?C ~ 35?CStorage Temperature: -20?C ~ 60?CRelative Humidity: 5% ~ 95% (non-condensing)Power supplyExternal power adapter (UL, cUL, CE, FCC, BSMI, TUV approved)Input: AC 100-240V, 50Hz-60HzOutput: DC +12V/5AFan noise level23 dB(A)Dimensions (LxWxH)9.17 inches x 5.87 inches x 2.99 inches23.3cm x 14.9cm x 7.6cmPackage contentsAKiTiO Thunder2 PCIe BoxThunderbolt cablePower adapterSetup guideCarton/PackingRetail Box Size: 12.4 x 12 x 4.9 in. (31.5 x 30.5 x 12.5 cm)Carton Size (6pcs per carton): 25.6 x 15.7 x 13.8 in. (65 x 40 x 35 cm)RemarksThe maximum real world performance of this Thunderbolt 2 device is 1375MB/s.This Thunderbolt product is not compatible with Apple's Boot Camp.PCIe card (driver) must be compatible with requirements for Thunderbolt technology (e.g. hot-plug support, recovery from sleep).Graphic cards are not supported.