
Lekuo PCIe x1 to 2-Port SATA Expansion Card
ASMedia ASM1061 Chipset - Professional Storage Expansion Solution
Driver & Resource Download
Supported Operating Systems:
Windows 7 (32/64bit) | Windows Vista | Windows Server 2003 | Windows XP | Windows 2000
Download Driver (AS1061.zip)Transfer Rate
6 Gb/s
Ports
2 x SATA
Bus Standard
PCIe 2.0 x1
Chipset
ASM1061
✨ Key Features
- ✓ ASM1061 Chipset – Asmedia 1061 SATA Host Controller for reliable performance
- ✓ Dual SATA Ports – Support 2 ports Serial ATA with adaptive transfer rates
- ✓ Hot Plug & Hot Swap – Connect and disconnect drives without system shutdown
- ✓ Native Command Queuing (NCQ) – Enhanced performance and efficiency
- ✓ Port Multiplier Support – Expand to multiple drives per port
- ✓ PCIe 2.0 Compatible – Backward compatible with PCI-Express 1.x
- ✓ High-Speed Transfer – Supports 6.0Gbps, 3.0Gbps, and 1.5Gbps communication speeds

📋 Product Parameters
| Brand | Lekuo |
| Product Name | PCIe x1 to 2-Port SATA Expansion Card |
| Model | PA61S21 |
| Chipset | Asmedia ASM1061 |
| Bus Standard | PCI Express 2.0, backward compatible with PCI Express 1.x |
| Protocol Support | Serial ATA AHCI Specification Rev.1.3 |
| Interface | 2 × SATA 3.0 (6Gbps) |
| Transfer Rate | 6.0Gbps / 3.0Gbps / 1.5Gbps adaptive |
| Features | Hot-Swap, Native Command Queuing (NCQ), Port Multiplier |
| System Compatibility | Windows、Linux |
| Dimensions | 65 x 50mm |
| Weight | Net: 40g |

🎯 Application Scenarios
🖥️ Servers & Workstations
Perfect for expanding storage capacity in professional workstations and enterprise servers. Add additional SATA drives for data storage, backup solutions, or RAID configurations with NCQ support.
💻 Desktop PC Upgrade
Ideal for desktop computers running Windows. Easily add more hard drives or SSDs to expand your storage capacity. Hot-swap capability allows drive replacement without shutdown.
🗄️ Data Storage & Backup
Enhance your system with additional storage for data archiving, backup solutions, or media libraries. Port Multiplier support enables connection of multiple drives per port.



📦 Package Contents
- • 1 x SATA III (6Gbps) Internal 2-port PCI-E Card
- • 1 x Low profile bracket
❓ FAQs
Q1: Is this expansion card compatible with my operating system?
Yes, the Lekuo PA61S21 supports Windows 7 (32/64bit), Windows Vista, Windows Server 2003, Windows XP, and Windows 2000. The ASM1061 driver is available for download at https://www.lekuo.com/uploadfile/upload//data/upload/image/AS1061.zip
Q2: What is the ASM1061 chipset?
The ASMedia ASM1061 is a professional-grade SATA Host Controller chipset that complies with Serial ATA AHCI Spec. Rev. 1.3 and Serial ATA Rev. 3.0, providing reliable 6Gbps transfer rates with advanced features like NCQ and hot-swap capability.
Q3: Does this card support hot-swap?
Yes! The PA61S21 supports both Hot Plug and Hot Swap functionality, allowing you to connect and disconnect SATA drives without shutting down your system. This is particularly useful for backup drives and external storage enclosures.
Q4: What is Native Command Queuing (NCQ)?
NCQ is an advanced feature that optimizes the order of read/write commands to improve performance and efficiency. This results in faster data access, especially when multiple operations are queued simultaneously.
Q5: Is this card backward compatible with older PCIe versions?
Yes, the PA61S21 is compliant with PCI-Express Specification V2.0 and is fully backward compatible with PCI-Express 1.x systems. It will work in any PCIe x1, x4, x8, or x16 slot.
Q6: What transfer speeds can I expect?
The card supports communication speeds of 6.0Gbps, 3.0Gbps, and 1.5Gbps, automatically adjusting to match your drive's capabilities. With SATA III SSDs, you can achieve up to 6Gbps (approximately 600MB/s) per port.