Quickly add two high-speed SATA ports to a PCI‑E slot with a compact cable adapter that uses the JMB582 main controller. Key benefits Expand storage without replacing the motherboard: provides two additional SATA3.0 ports so you can connect more SSDs or HDDs. High-performance transfer: supports SATA3.0 at up to 6 Gbps per port and uses a PCI‑E 3.0 interface to deliver the bandwidth you need for fast reads and writes. Reliable, hardware-level control: built around the JMB582 controller for stable signal handling and predictable performance. Simple installation: cable-adapter form factor fits into a PCI‑E connection point and routes two SATA ports for easy cable management. What it does and why you need it Converts a PCI‑E 3.0 connection into two SATA3.0 (6 Gbps) device ports, making it an effective solution when you need extra internal storage without a new motherboard or SATA backplane. Ideal when you want to add drives for capacity, create a small software RAID, or attach dedicated SSDs for caching or application storage. Compatibility and performance Function: Cable adapter that provides two SATA3.0 device connections. Interface: PCI‑E 3.0 for host connectivity. Performance: Supports SATA3.0 (6 Gbps) speeds per port when used with compatible hardware. Controller: JMB582 main control chip for drive management. Practical use scenarios Desktop upgrade: Add two SSDs to a PC for system caching and faster boot/application load times. Home lab or small server: Expand internal storage to host virtual machines or additional data volumes without changing the mainboard. Data migration or backup: Connect two drives temporarily for cloning, backups, or transferring large datasets. Specifications Expansion Connection: 2 SATA3.0 (6 Gbps) Interface Speed: PCI‑E 3.0 Type: Cable Adapter Main Control Chip: JMB582