PCIE to SATA AdapterSATA 3.0 Expansion Card 4 Port PCIE to SATA 3.0 6G Expansion Controller Card Adapter1. Rear SATA3.0 interface: The new upgrade expands the rear four SATA3.0 interfaces, which is more suitable for narrow spaces. 2U can also be fixed better; of the rear wiring, there will be no crossover with the graphics card. 2. Universal 4U, 2U: This product is equipped with 4U, 2U dual fixed racks, which are supported by large or small chassis.+ product1. Larger heat sink: better heat dissipation and more suitable for long working hours. 2. PCI-E Interface: It is easy to install in the PCI-EXPRESS slot of the chassis with a thick gold-plated PCI-E interface. Better contact and easy data transmission can effectively reduce the data loss rate. 3. The tail is designed to be flush: there is less risk of blocking the graphics card fan. 4. Four-layer circuit board with insulation layer in the middle for stronger anti-interference ability. 5. Original mode selection: AHCI, IDE, data disk, three modes are free to choose. Package list: 1 x expansion card 1 x 2U baffle 2 x screws Note: Please note that the new type and l Old type of this product will be sent randomly and please make sure you will not mind before ordering. FeaturesModel: SA3004Bus interface: PCI-E X1 (compatible with X4, / Win7 / Win8 / Win10 (32/64 bit)Size: approx. 120 x 65 x 56 mm / 4.7 x 2.6 x 2.2 inch (as pictures show) Weight: Approx. 89g