STARTECH PEXUSB3S25 2 Port PCI Express USB 3.0 Expansion Card
- 2x USB Ports
- USB 3.0
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Add four SATA III 6 Gbps ports to a desktop or server via a PCIe x2 slot using the ASM1164 controller
This StarTech expansion card adds four SATA III 6Gbps ports to a desktop or server through a single PCI Express x4 slot. The ASM1164 controller delivers a combined bandwidth of up to 16Gbps and supports Port Multiplier and NCQ for efficient drive management. No built-in RAID is included, simplifying compatibility with a wide range of motherboards and operating systems including Windows 7 and later, macOS 10.10 and later, and Linux kernel 2.6.32 and later.
The card suits anyone who needs to connect additional SATA hard drives or SSDs to a system with a free PCIe x4 slot. It works with standard AHCI drivers for plug-and-play operation across supported platforms. Buyers who require onboard hardware RAID functionality should consider other solutions, as this controller operates in non-RAID mode only. A full-profile bracket is installed and a low-profile bracket is included for flexible installation.
The single-chip ASM1164 architecture provides four SATA 6Gbps ports sharing up to 16Gbps of aggregate throughput over the PCIe 3.0 x4 interface. This bandwidth ceiling is the key specification that determines whether the card can sustain the combined transfer rates of your intended drive configuration. Support for SATA 3.2 and AHCI 1.4 specifications ensures broad drive compatibility.
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| Size & build | |
|---|---|
| Shipping weight | 0.45 kg |
| Package size | 152 × 132 × 25 mm |
Yes, the card installs in an available PCIe x4 slot and uses a PCIe 3.0 interface for up to 16Gbps total bandwidth across the four ports.
The controller supports SATA 3.2 and is backward compatible with earlier SATA revisions, so older drives will operate at their rated speeds.
The card should appear as a SATA controller in your OS device manager or system profiler without extra drivers on Windows 7+, macOS 10.10+ or Linux kernel 2.6.32+.
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