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The UGREEN 70503 adapter card is a high-performance expansion solution that allows you to install an M.2 NVMe (M-Key) SSD into your desktop PC via a PCI-Express slot, unlocking full PCIe 3.0 x4 speeds (up to 32 Gbps). Whether you are upgrading your workstation, boosting storage for content creation, or reviving an older system, this card offers an easy way to leverage the speed of NVMe drives without needing a dedicated M.2 slot on the motherboard.
The card supports M.2 sizes 2230, 2242, 2260 and 2280 and is compatible with PCIe 3.0, while also backwards compatible with PCIe 2.0 and PCIe 1.0 slots. Built with multi-layer PCB, over-current, over-voltage, short-circuit and EMI protections, this adapter safeguards your valuable SSD and data. Installation is straightforward — simply insert the M.2 SSD, install the bracket (standard or low profile included) into a PCIE x4/ x8/ x16 slot, and the drive is ready for use (no drivers required for most systems).
| Model | 70503 (M.2 NVMe → PCI-E 3.0×4 Express Card) |
| Interface (Host Slot) | PCI-Express x4 (compatible with PCIe x4/x8/x16 slots) |
| SSD Interface Supported | M.2 M-Key NVMe (2230/2242/2260/2280) |
| Maximum Transfer Rate | Up to approx. 32 Gbps (PCIe 3.0 x4) |
| Backward Compatibility | Supports PCIe 3.0, 2.0 and 1.0 host slots |
| Protection Features | Multi-layer PCB protection: over-current, over-voltage, short-circuit, EMI shielding |
| Supported Operating Systems | Windows, Linux (macOS may recognise as generic NVMe if supported) |
| Form Factor / Size | Approx. 116.8 × 47 mm (PCB) / bracket length ~119 mm |
| Included Accessories | Standard profile and low-profile PCIe brackets, screws & standoffs for M.2 SSD mounting |
| Warranty Terms: | 1-year warranty provided by UGREEN MAURITIUS – 101 Multimedia. |
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