Professional 5-Port SATA 6Gb/s PCIe 3.0 x4 Expansion Card
The Lekuo IO-PCE585S-5I is a high-performance PCIe 3.0 x4 SATA expansion card featuring the reliable JMicron JMB585 chipset. Add five independent SATA 6Gb/s ports to your desktop PC, workstation, NAS server, or home server build. This professional-grade storage controller card supports both HDDs and SSDs with full hot-plug capability, AHCI mode, and software RAID compatibility.
🔽 Free Driver Download
Download JMB585 Driver Package
✓ Windows 7/8/10/11 | ✓ Linux | ✓ UEFI Support
Add drives on-the-fly
RAID 0/1/5/10
NCQ support
SFF compatible
⚡ Technical Specifications
| Specification | Details |
|---|---|
| Model | IO-PCE585S-5I |
| Chipset | JMicron JMB585 |
| Interface | PCIe 3.0 x4 |
| SATA Ports | 5x SATA III (6Gb/s each) |
| Slot Type | PCIe x4 / x8 / x16 |
| Bandwidth | Up to 4GB/s |
| Form Factor | Low Profile (79.3 x 58.5mm) |
| Power | Bus-powered (no external power) |
🌟 Key Features
🚀 High Performance
- PCIe 3.0 x4 - Up to 4GB/s bandwidth
- SATA 6Gb/s - 600MB/s per port
- NCQ support - Up to 32 commands
- AHCI 1.3.1 compliant
- TRIM support for SSDs
🔧 Easy Installation
- Plug & Play on Windows 10/11
- Hot-plug capable
- Low profile design
- No external power needed
- Universal OS compatibility
💾 Storage Flexibility
- 5 independent SATA ports
- HDD & SSD support (2.5"/3.5")
- Port Multiplier (up to 25 drives)
- Software RAID 0/1/5/10
- Mix HDDs and SSDs freely
⚙️ Advanced Features
- Power management modes
- Staggered spin-up
- FIS & CB Port Multiplier
- SATA link power saving
- Advanced error recovery
💻 System Compatibility
🪟 Windows
- Windows 11 ✓
- Windows 10 ✓
- Windows 8/8.1 ✓
- Windows 7 ✓
- Windows Server ✓
🐧 Linux & NAS
- Ubuntu / Debian ✓
- CentOS / RHEL ✓
- TrueNAS Core/Scale ✓
- Unraid 6.x+ ✓
- OpenMediaVault ✓
⚙️ Requirements
- PCIe x4 slot or higher
- UEFI or Legacy BIOS
- No external power
- Intel & AMD compatible
📦 Package Contents
- ✅ 1x IO-PCE585S-5I Expansion Card
- ✅ 1x Low-Profile Bracket
- ✅ Mounting screws
📝 SATA cables sold separately. Recommend 18" or shorter SATA 6Gb/s cables.
🎯 Perfect Applications
TrueNAS, Unraid, OMV builds
Video editing & content creation
Software RAID arrays
Local data redundancy
Gaming & productivity storage
24/7 recording systems
📊 Performance Benchmarks
| Test Scenario | Performance |
|---|---|
| Single SSD Sequential Read | Up to 560 MB/s |
| Single SSD Sequential Write | Up to 530 MB/s |
| 5x HDD RAID 0 Array | Up to 750 MB/s |
| Random 4K IOPS (NCQ) | 90,000+ IOPS |
* Tested with Samsung 870 EVO SSDs and WD Red Pro HDDs
💡 Pro Tips
- Slot placement: Use PCIe x4+ slot for full bandwidth
- Cables: Use quality SATA 6Gb/s cables (18" or shorter)
- BIOS: Enable AHCI mode for best performance
- Drivers: Install latest JMB585 driver
- Power: Enable staggered spin-up for 4+ drives
- RAID: Use same model/capacity drives
❓ FAQ
Q: Does this require external power?
A: No, it's entirely bus-powered through the PCIe slot. No additional power connectors needed.
Q: Will this work in a PCIe x1 slot?
A: No, this card requires a PCIe x4 slot or higher (x8/x16). It will NOT fit in x1 slots.
Q: Compatible with TrueNAS/Unraid?
A: Yes! JMB585 has excellent Linux support. Works perfectly with TrueNAS, Unraid, OMV, and other NAS platforms.
Q: Hardware RAID support?
A: This is a SATA host controller, not hardware RAID. Supports software RAID via OS (mdadm, ZFS, Storage Spaces).
Q: Hot-plug support?
A: Yes, fully supports SATA hot-plug. Add/remove drives without shutdown (if OS and enclosure support it).
Q: Maximum drives supported?
A: 5 independent ports. With Port Multiplier, up to 25 drives (5 ports × 5 per PM).
Q: SSD and HDD compatible?
A: Yes! Supports all SATA III drives (2.5" SSDs, 3.5" HDDs). Mix and match freely.
Q: Driver needed for Windows 10/11?
A: Windows 10/11 include in-box drivers (plug-and-play). We recommend downloading latest driver for optimal performance.
✅ Lekuo Quality Guarantee
Professional-grade components engineered for 24/7 operation. Rigorously tested for compatibility with major NAS platforms, Windows Server, and Linux distributions. Backed by responsive technical support.