STARTECH PEXUSB3S25 2 Port PCI Express USB 3.0 Expansion Card
- 2x USB Ports
- USB 3.0
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Adds four M-key NVME SSDs at up to 32 Gbps each via a PCIe 4.0 x16 slot with bifurcation
This add-on card adds four M-key NVMe SSDs through a single PCIe 4.0 or 3.0 x16 slot. The motherboard must support PCIe x16 bifurcation and be configurable to x4x4x4x4 in BIOS. It accepts 2230, 2242, 2260 and 2280 form factors and provides an individual LED for each drive's activity status. The card does not support SATA-based B-key or B+M-key M.2 drives.
The card operates without fans or external power connectors, relying on case airflow and the slot for thermal management. Four drives running at up to 32 Gbps each produce heat that the motherboard and chassis must dissipate. Silent operation is inherent because there are no moving parts on the card itself. Power consumption comes entirely from the PCIe slot and the installed SSDs.
Installation needs a free PCIe 4.0 or 3.0 x16 slot and a CPU with sufficient lanes to drive four x4 NVMe devices. Without BIOS support for x4x4x4x4 bifurcation only one drive will be recognised. Software RAID can be created in Windows 10 or with third-party tools using four identical SSDs. Hardware RAID is not available and SATA M.2 drives cannot be used.
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No published specifications for this item yet.
Insert the card into a PCIe 4.0 or 3.0 x16 slot. The motherboard must support PCIe x16 Bifurcation set to "x4x4x4x4" in BIOS; otherwise only one SSD will be detected.
Each SSD has a dedicated LED showing power and activity. Monitor these indicators for drive health and keep firmware updated via the SSD vendor's tools; the card itself has no moving parts.
The card delivers up to 4x 32Gbps across the PCIe 4.0 x16 link. Sustained throughput is ultimately limited by the motherboard's bifurcation implementation and the CPU's available lane count.
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