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Sonew ASM1166 M.2 to SATA III 4-Port Adapter Card — main product image
Sonew ASM1166 M.2 to SATA III 4-Port Adapter Card
Sonew ASM1166 M.2 to SATA III 4-Port Adapter Card
Sonew ASM1166 M.2 to SATA III 4-Port Adapter Card
Sonew ASM1166 M.2 to SATA III 4-Port Adapter Card
Sonew ASM1166 M.2 to SATA III 4-Port Adapter Card
Sonew ASM1166 M.2 to SATA III 4-Port Adapter Card
Sonew

Sonew ASM1166 M.2 to SATA III 4-Port Adapter Card

Turn a single M.2 slot into four full-speed 6 Gbps SATA ports for NAS and high-density storage builds

$29.29*
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*Price sourced from Amazon.com. Last updated:Aug 08, 2026.Price and availability are subject to change.

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Overview

The Sonew ASM1166 adapter card is aimed squarely at people who have run out of SATA connections. Rather than occupying a full-size PCIe slot, it uses an M.2 PCIe 3.0 connector — M Key or B Key — and converts that single link into four independent SATA 3.0 ports. The ASM1166 controller handles the switching, and each port operates at its full 6 Gbps native speed. That makes the card a natural fit for NAS builds, server upgrades, and any high-density storage project where the motherboard simply doesn't offer enough headers. Up to four 2.5-inch SSDs, 3.5-inch HDDs, or optical drives can run at once.

Construction reflects its intended role in always-on machines. An aluminum heatsink is mounted directly onto the ASM1166 chip to keep temperatures stable under continuous load, while a reinforced hollow-backplate design lends rigidity during repeated cable insertion. Each port carries its own indicator light, giving immediate confirmation of a connected device and a pulsing signal during data transfer — useful when troubleshooting without OS tools. On the software side, the card spans Windows 7 through 11, common Linux distributions, macOS with the right drivers, and Synology DSM, requiring no driver installation on most modern systems and supporting hot-plug when enabled at the OS level. Total PCIe bandwidth tops out at 16 Gbps, a ceiling worth keeping in mind if you plan to hammer all four ports at once.

Key Features

Expansion Capability: This M.2 to Serial ATA3.0 adapter card leverages the ASM1166 controller to convert a single M.2 PCIe 3.0 slot (M Key or B Key) into four independent 3.0 ports, enabling simultaneous connection of up to four 2.5-inch SSDs, 3.5-inch HDDs, or optical drives — ideal for NAS builds, server upgrades, and high-density storage expansion without requiring additional motherboard headers.

Indicator & Real-Time Feedback: Featuring a dedicated indicator light per port, this M.2 to Serial ATA3.0 adapter card provides immediate visual confirmation of device ( light) and transfer (pulsing light), simplifying troubleshooting and enhancing system visibility without relying on OS- tools or logs.

Performance & Bandwidth: As an M.2 expansion card, it delivers a total PCIe bandwidth of 16 Gbps , with each port operating at full 6 Gbps native speed, ensuring sustained sequential read/write performance across attached drives — no throttling or shared bottleneck common in lower-tier bridge solutions.

Thermal Management & Structural Integrity: Engineered with an integrated aluminum heatsink directly mounted on the ASM1166 chip and a reinforced hollow-backplate design, this M.2 M Key adapter card maintains stable thermal under continuous load while PCB during repeated cable insertion — for -term reliability in 24/7 NAS or workstation environments.

Platform Compatibility & Plug-and-Play : Fully compatible as an M.2 PCI E expansion card across 7–11, distributions, macOS (with appropriate drivers), , , and DSM — requires no driver installation on most modern systems and supports hot-plug capable devices when enabled at the OS .

Specifications

Brand
Sonew
Controller
ASM1166
Host Interface
M.2 PCIe 3.0 X4 (M Key or B Key)
Output Ports
4 x SATA 3.0
Per-Port Speed
6 Gbps native
Total PCIe Bandwidth
16 Gbps
Supported Drives
2.5-inch SSD, 3.5-inch HDD, optical drives
Cooling
Integrated aluminum heatsink on controller
Indicators
Per-port status and transfer lights
OS Compatibility
Windows 7–11, Linux, macOS (with drivers), Synology DSM
Hot-Plug
Supported when enabled at OS level

Frequently Asked Questions

Up to four. It converts a single M.2 PCIe 3.0 slot into four independent SATA 3.0 ports, supporting any mix of 2.5-inch SSDs, 3.5-inch HDDs, or optical drives.
Each port operates at the full 6 Gbps native SATA speed. However, total PCIe bandwidth is 16 Gbps, so four fully saturated SSDs would collectively exceed that shared uplink.
On most modern systems, no. It is plug-and-play on Windows 7 through 11, Linux distributions, and Synology DSM. macOS requires appropriate drivers to function.
It fits M.2 PCIe 3.0 slots in either M Key or B Key configuration. Note that it uses a slot you might otherwise assign to an NVMe drive.
Yes. It includes an aluminum heatsink mounted directly on the ASM1166 chip and a reinforced hollow-backplate design intended to maintain stable thermals under continuous load.
Each port has a dedicated indicator light. A steady light confirms a connected device, while a pulsing light signals active data transfer, simplifying troubleshooting without OS tools.

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