STARTECH PEXUSB3S25 2 Port PCI Express USB 3.0 Expansion Card
- 2x USB Ports
- USB 3.0
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Adds an M.2 NVMe SSD to a desktop via a PCIe 3.0 x1 slot, supports 2230 to 2280 drives and includes a low-profile bracket
This expansion card adds an M.2 M-key NVMe or AHCI solid-state drive to a desktop computer through any available PCIe x1, x4, x8 or x16 slot. It targets owners of older motherboards that lack a native M.2 connector but still need faster storage than SATA can provide. The card ships with a low-profile bracket for small-form-factor chassis. Builders who require a SATA-based M.2 drive cannot use this adapter.
Mounting holes accommodate 2230, 2242, 2260 and 2280 form factors, so most common NVMe sticks fit without modification. The onboard controller is rated for up to 3200 MB/s read and 1500 MB/s write, yet the single-lane PCIe 3.0 host link caps real-world throughput at roughly half that figure. Users needing the full bandwidth of a four-lane NVMe drive will not reach it on this card.
The card operates on PCIe 3.0, 2.0 or 1.0 motherboards and requires Windows 10, 8.x or 7 for driver-less operation. Systems released before 2015 often lack NVMe boot support, restricting the drive to secondary storage duties. Certain Intel chipsets such as B250, B150, H170, Z170, Z97, B85 and Z87 may need a BIOS update before the adapter functions correctly.
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| Product | |
|---|---|
| Product type | PCI Express to M.2 Card |
| Ports & slots | |
| External connectors | PCI-e 3.0 x1 |
| Internal ports | M.2 |
Yes — the card is backward compatible with PCIe 2.0 and 1.0 slots, and even at the reduced x1 bandwidth the NVMe drive remains quicker than any SATA alternative.
The drive should appear in BIOS and Windows Disk Management without extra drivers; if a yellow exclamation mark shows in Device Manager, obtain the NVMe driver from the SSD maker.
Onboard standoffs support 2230, 2242, 2260 and 2280 M-key NVMe or AHCI drives; a low-profile bracket is included, so no extra parts are required.
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