🚀 Lekuo PCIe 4.0 x16 to 4x M.2 NVMe Adapter
Model: PX24M41 | Brand: Lekuo
Professional PCIe 4.0 expansion card with integrated PCIe switch chip for dynamic bandwidth allocation. Connect up to 4x M.2 NVMe SSDs simultaneously with total bandwidth up to 16 GB/s. No motherboard bifurcation support required.
✨ Key Features
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No Bifurcation Required - Built-in PCIe switch chip with dynamic bandwidth allocation
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High-Speed Performance - PCIe 4.0 x8 bandwidth, up to 128 GT/s transfer rate, total ~16 GB/s
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4x M.2 Slots - Supports M.2 2280 (compatible with 2260, 2242, 2230)
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NVMe 1.3/1.4 Protocol - Full support for latest NVMe standards
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Universal Compatibility - Windows, Linux, macOS - plug-and-play, no drivers needed
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Premium Build - Includes thermal pads and heat dissipation design
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1 Year Warranty - Professional after-sales support
📋 Technical Specifications
| Model Number |
PX24M41 |
| Host Interface |
PCI Express 4.0 x16 slot required (electrical: x8) |
| Device Interface |
4 × M.2 M-Key (NVMe PCIe only) |
| Supported Sizes |
M.2 2280 (compatible with 2260, 2242, 2230) |
| Protocol Support |
NVMe 1.3 / 1.4 |
| Bandwidth Allocation |
Dynamically shared, up to ~16 GB/s total (PCIe 4.0 x8) |
| Transfer Rate |
128 GT/s |
| Operating Temperature |
0°C - 70°C |
| Operating Systems |
Windows, Linux, macOS |
| Dimensions |
202 × 95 mm |
| Weight |
Net: 360g | Gross: 500g |
| Warranty |
1 Year |
💼 Ideal Applications
- High-capacity storage arrays for 4K/8K video editing and content creation
- Workstation and server storage expansion
- RAID configurations for data redundancy and performance
- Virtual machine storage pools and hypervisor environments
- Database servers and enterprise application acceleration
- High-performance computing (HPC) and AI/ML workloads
📦 Package Contents
- 1 × PCIe 4.0 x16 to 4x M.2 NVMe Adapter Card (PX24M41)
- 1 × User Manual
- 1 × Screwdriver
- 4 × Mounting Standoffs (Copper)
- 4 × Thermal Pads / Thermal Silicone Pads
- 10 × Mounting Screws
⚠️ Important Notes:
- Requires a PCIe x16 slot on your motherboard
- M.2 NVMe SSDs are NOT included and must be purchased separately
- Ensure adequate airflow and cooling for optimal performance
No driver available for this product.
Q: What is the physical interface and actual bandwidth of the PX24M41?
A: The card uses a standard PCIe x16 full-length slot physical form factor, but the electrical interface is PCIe 4.0 x8, providing 128Gbps (approx. 15.7GB/s) of bidirectional theoretical bandwidth. The x16 gold-finger design is purely for mechanical compatibility and ease of insertion.
Q: What is the core function of the onboard IX8024 Switch chip?
A: The IX8024 is a low-power PCIe 4.0 switch chip that dynamically allocates 8 PCIe 4.0 lanes to 4 downstream x4 ports. Most importantly, it does not require motherboard BIOS support for Bifurcation - it is plug-and-play with all PCIe 4.0-capable motherboards. This completely solves the problem of consumer motherboards that do not support x8-to-4x4 splitting, allowing older boards to easily expand with 4 NVMe SSDs.
Q: What NVMe SSD form factors are supported? Is it compatible with PCIe 3.0 SSDs?
A: It supports 4 M.2 NVMe SSDs (Key M interface), compatible with 2230/2242/2260/2280 lengths. It is backward compatible with PCIe 3.0 x4 SSDs, with speeds automatically negotiating down to PCIe 3.0 x4 (approx. 3.9GB/s). SATA SSDs and U.2/U.3 devices are not supported.
Q: What is the single-drive and multi-drive concurrent performance like?
A: Single-drive sequential reads can reach 7000MB/s+ (depending on SSD model). With 4 drives concurrent, the aggregate bandwidth stabilises at 12-13GB/s, approaching the theoretical PCIe 4.0 x8 limit. The IX8024's intelligent arbitration ensures latency jitter under 5% during multi-drive contention, outperforming software RAID or HBA solutions.
Q: What is the purpose of the large aluminium heatsink?
A: The heatsink is CNC-machined from a solid block of aluminium, covering both the IX8024 chip and the 4 SSD positions. High-conductivity thermal pads rapidly transfer heat from the chip and SSDs to the heatsink, significantly improving passive cooling efficiency - even with the fan stopped, safe temperatures can be maintained for short periods.
Q: How does the thermal design affect SSD lifespan?
A: The excellent cooling keeps SSD operating temperatures safely below the 70°C threshold, preventing accelerated NAND aging and controller throttling caused by high temperatures. It also reduces thermal expansion/contraction stress, lowering the risk of solder joint fatigue.
Q: Why is this card only compatible with 4U full-height chassis and not 2U?
A: The card uses a standard full-height bracket (approx. 120mm), and the combined thickness of the heatsink and fan module exceeds the low-profile bracket limit, making it unsuitable for the tight space of 2U rackmount servers. 4U and larger chassis, tower workstations, and full-height desktops are all compatible. For 2U users, please consider our low-profile version or U.2 adapter solutions.
Q: What are the specific PCIe slot requirements for this card?
A: The motherboard must have at least one PCIe 4.0 x8 or x16 physical slot (electrical x8 is sufficient). No motherboard Bifurcation support is needed - the IX8024 handles lane allocation independently. PCIe 3.0 x8/x16 slots can also be used, but speeds will drop to PCIe 3.0 x8 (64Gbps), halving the aggregate 4-drive bandwidth.
Q: Does it require additional power input?
A: No external SATA/Molex power is needed. The PCIe x16 slot can deliver up to 75W - far more than the card's maximum power draw. However, we recommend using a power supply rated at 550W or above to avoid insufficient power when multiple cards and high-end GPUs are used simultaneously.
Q: Does it support RAID functionality?
A: Hardware RAID is not provided, but it is fully compatible with software RAID solutions including Windows Storage Spaces, Linux mdadm/ZFS, and macOS Disk Utility. We recommend ZFS RAIDZ1/RAIDZ2 or Windows mirrored volumes, leveraging the IX8024's low latency for high-performance software RAID with far greater flexibility than hardware RAID controllers.
Q: Can it be used with virtualization platforms like ESXi or PVE?
A: Fully supported. VMware ESXi 7.0+ and Proxmox VE can directly recognise the 4 independent NVMe SSDs, supporting passthrough to VMs or building vSAN/Ceph distributed storage. The IX8024 has excellent IOMMU compatibility, and latency after passthrough is virtually identical to bare-metal, making it ideal for All-in-One virtualised storage nodes.
Q: Who is this product best suited for?
A: 1. Legacy motherboard upgraders: No Bifurcation required - older Z370/X470 boards can add 4 PCIe 4.0 SSDs. 2. Video editing workstations: 4-drive concurrent 13GB/s for stutter-free 8K RAW playback. 3. NAS/storage servers: Dense NVMe cache pool in 4U chassis with quiet fans. 4. AI training/deep learning: Parallel model loading with PCIe 4.0 x8 bandwidth to feed GPU data demands. 5. IT operations/test platforms: Quickly build multi-drive test environments with Bifurcation-free compatibility across various spare motherboards.
