1. Adopt a four-layer circuit board, add an isolation layer in the middle, and have stronger anti-interference ability. The tail is flush-edge design to reduce the chance of blocking the graphics card fan. 2. Enlarged heat sink, better heat dissipation effect, more stable operation of the product, suitable for long-term work 3. Adopt heavy gold technology to thicken the golden finger, better contact, high speed, strong reliability, PCIE x1 interface, PClE interface can be used. 4. Built-in 4 SATA3.0 (6Gbps) interfaces, supporting -capacity hard drives and SSDs; 5. Support SATA interface hot-swappable, the rear connection port and the graphics card will not . specification: Product name: PCIE to SATA3.0 expansion card It complies with the Serial 3.0 specification and is backward compatible with SATA2.0 and SATA1.0. Comply with PCI-Express v2.0 specification and backward compatible with PCI-Express v1.0. Support 6.0 Gbps, 3.0 Gbps and 1.5 Gbps communication speed. Supports Gen 1i, Gen 1x, Gen 2i, Gen 2m, Gen 2x and Gen 3i. PCI-E expands to 4 SATA3.0. Colour:green Material:PCB+metal Package Contents: 1 * PCIE to SATA expansion card Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.