STARTECH PEXUSB3S25 2 Port PCI Express USB 3.0 Expansion Card
- 2x USB Ports
- USB 3.0
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Adds two M.2 2280 NVMe SSD slots and dual 2.5GbE RJ-45 ports via a single PCIe 3.0 x4 slot
The Qnap QM2-2P2G2T installs in a PCI Express 3.0 x4 slot and adds two M.2 2280 NVMe SSD slots plus dual 2.5GbE RJ-45 ports. Each M.2 slot operates at PCIe Gen3 x2 speed. Both Intel I225-LM controllers share the same four-lane link. Low-profile and full-height brackets are included.
This card suits Qnap NAS owners who want faster networking and local SSD caching in one slot. Builders of small-form-factor PCs gain two high-speed drive bays and multi-gigabit Ethernet without using extra expansion slots. It is not for systems that lack a free PCIe 3.0 x4 connection or that require more than two M.2 drives.
All four M.2 lanes and both 2.5GbE controllers share one upstream PCIe 3.0 x4 interface. Total bandwidth is limited to that four-lane Gen3 ceiling, so simultaneous peak SSD and network traffic will contend for the same link. Verify the host platform provides an open x4 slot wired for Gen3 before purchasing.
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| Product | |
|---|---|
| Brand name | QNAP |
| Model name | QM2-2P2G2T |
| Product type | PCI Express 3.0 x4 to M.2 Card |
| Ports & slots | |
| External connectors | 2 × 2.5GbE RJ-45 |
| Internal ports | 2 x M.2 2280 PCIe (Gen3 x2) NVMe SSD slots |
| Size & build | |
| Product dimensions | 2.71 in × 6.01 in × 0.81 in |
| Shipping weight | 0.30 kg |
| Package size | 197 × 127 × 57 mm |
| In the box | |
| In the box | RJ-45; over CAT-5e class cable |
Yes, the card requires a PCI Express 3.0 x4 slot to provide both the dual M.2 NVMe slots and the two 2.5GbE network ports.
Yes, the 2.5GbE ports are backward compatible and will automatically negotiate to 1 GbE over CAT-5e cabling when connected to a Gigabit switch.
Check the system BIOS or operating system disk management; both drives should appear as separate NVMe devices when seated in the two M.2 2280 slots.
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