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MB312M4P-B
The ExpressSlot Core MB312M4P-B is a PCIe 4.0 x8 adapter card designed to support *two M.2 NVMe SSDs, featuring a tool-less removable M.2 NVMe SSD tray for seamless drive access and easy maintenance. IT professionals, audio/video editors, and gamers can quickly install or swap two M.2 NVMe SSDs without opening the system chassis, making it ideal for servers, industrial PCs, workstations, and media-heavy environments where fast SSD swapping is essential for minimizing downtime, maximizing productivity, or managing media libraries.
*Please note that this product requires a motherboard with PCIe Bifurcation mode to recognize both M.2 NVMe SSDs.
Innovative Removable Design for M.2 NVMe SSD
Unlike traditional M.2 NVMe SSD PCIe adapter cards that require opening the chassis for maintenance, the ExpressSlot Core MB312M4P-B revolutionizes the process with dual removable M.2 NVMe SSD trays. These trays can be easily accessed from the PCIe slot panel, allowing quick and tool-less access, perfect for tasks like data backup, system recovery, or daily operations in demanding environments. With no need to remove the entire adapter card, it’s an ideal solution for enterprise-level systems where time and uptime are critical.
Support 2 x M.2 NVMe SSD & Tool-less SSD Installation
Thanks to the tool-less SSD installation design, installing the M.2 NVMe SSDs into the MB312M4P-B has never been easier. First, position the M.2 SSD mounting clip into the semi-circular notch above the screw hole, then place both the M.2 NVMe SSD and the mounting clip onto the tray. Next, apply the thermal pad and reattach the heatsink lid to complete the installation. The entire process takes less than 60 seconds, allowing you to install or remove the SSDs without unmounting the MB312M4P-B from the PCIe slot.
Optimized Thermal Management
The MB312M4P-B is equipped with aluminum heatsink lids and included thermal pads to efficiently dissipate heat from the dual M.2 NVMe SSDs, ensuring stable performance even under intensive PCIe 4.0 workloads. This prevents thermal throttling and maximizes data throughput. The design effectively channels airflow, keeping both M.2 NVMe SSDs cool and ensuring reliable performance during heavy data transfers.
Superior PCIe 4.0 Performance
The PCIe 4.0 x8 interface delivers unparalleled speed, providing 64Gbps transfer rates—10 times faster than SATA III. This makes the MB312M4P-B an ideal solution for applications that demand high-speed data transfer, such as AI, big data analytics, and cloud computing. With PCIe 4.0, you’ll experience reduced latency and faster data access, making your system future-proof for data-intensive workloads.
Maximum Compatibility for Modern Systems
Designed for PCIe 4.0 x8 slot, the ExpressSlot Core MB312M4P-B is fully compatible with x8 and x16 PCIe slots, offering unmatched flexibility for various system architectures. Whether you’re upgrading your server, workstation, or enterprise system, this adapter is engineered to integrate seamlessly.
Packed with Features
The MB312M4P-B comes equipped with dual drive activity LED indicators, allowing you to monitor SSD power and activity at a glance. The auto-power-off feature further enhances energy efficiency by shutting down the device when no SSD is detected.
The optional 2-pin HDD activity signal outputs (cable not included) allow you to transfer the drive activity signal to the computer case or LED panel and lets you monitor the drive activities in your desired location.
Main Features
• Supports PCIe 4.0 x8 up to 64Gbps transfer speeds
• Supports 2 x M.2 PCIe NVMe SSD (30-80mm length) in 2230, 2242, 2260, and 2280 form factors
• PCIe 4.0 x8 interface, also compatible with x16 slots
• Slim, single-width full-height PCIe expansion slot design
• Tool-less removable M.2 NVMe SSD tray for quick and easy SSD maintenance
• Quick release knob for fast SSD tray removal and installation
• Aluminum heatsink lid and included thermal pad for optimal heat dissipation
• Active Power Technology (APT) to save power when the device is not in use
• High-speed PCIe interface that reduces clutter and delivers both power and data transfer
• Drive activity LED indicator to monitor SSD status
• Optional SSD activity signal output lets you transfer the drive activity signal to computer case
| Specification | |
|---|---|
| Color | Black |
| Compatible Drive Type | M.2 PCIe 3.0/4.0 NVMe SSD |
| Connector Insertion Rate | 5,000 |
| Drive Activity LED Indication | Device power: solid blue Device activity: flashing blue Empty: LED off |
| Drive Bay | 1 x PCIe 3.0 or 4.0 x8 / x16 expansion slot (motherboard required PCIe x8 slots bifurcated into x4/x4 mode or PCIe x16 slots bifurcated into x4/x4/x4/x4 mode) |
| Drive Cooling | Metal heat dispersion with passive cooling |
| Host Interface | PCIe 4.0 x8 |
| Humidity | 5%~65% RH |
| Model Number | MB312M4P-B |
| Number of Drives | 2 |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Package Contents | Device, user manual, thermal pads, M.2 SSD mounting clips, screws |
| Power Input | Via PCIe |
| Storage Temperature | -35°C to 70°C (-31°F to 158°F) |
| Structure / Material | Metal IO bracket/cover with PCBA and plastic shield |
| Support Drive Size | M / B + M key M.2 PCIe NVMe SSD 2230/2242/2260/2280 |
| Support SSD Capacity | No limitation |
| Transfer Rate | Up to 64Gbps (depending on hard drive speed) |
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