DFRobot M.2 M Key to PCIe4.0x16 Graphics Card Extension Cable (Compatible w/ LattePanda Sigma)
Description
- DFRobot M.2 M Key to PCIe4.0x16 Graphics Card Extension Cable (Compatible w/ LattePanda Sigma)
- Enhances performance of LattePanda Sigma
- Features plug-and-play setup with no drivers required
- Maintains stable signal with EMI-shielding materials
- Supports independent power supply via 15-pin SATA cord
- Offers bendable and foldable design for flexibility
The DFRobot M.2 M Key to PCIe4.0x16 Graphics Card Extension Cable (Compatible w/ LattePanda Sigma) is designed to enhance the performance of the LattePanda Sigma motherboard by facilitating the connection of external graphics cards or PCIe devices. This extension cable features a PCIex16 card slot and employs a differential signal hole-free design, ensuring no signal attenuation or interference due to parasitic capacitance and inductance. It offers a plug-and-play experience, requiring no driver installation.

The cable utilizes metal-shielded wires and advanced EMI-shielding conductive polymers to maintain stable signal transmission. The innovative materials used for EMI shielding allow the cable to be flat, bendable, and foldable without compromising functionality. Additionally, the adapter card supports an independent power supply and includes a 15-pin SATA power cord, simplifying the setup process by eliminating the need for extra wiring.
Note: Ensure correct orientation when connecting the wire to avoid damaging the device. Handle the socket carefully to prevent disconnection of socket pins, and avoid bending or pulling within 2cm of the welding points. Signal attenuation may occur depending on the signal drive capabilities of various motherboards and devices.
- 1x M.2 M Key to PCIe4.0x16 Extension Cable
- 1x 15 pin SATA power cable
- Cord length: 20 cm
- High-quality PCIe x16 card slot
- Compatible with PCIe 4.0 x4 interface
- Bandwidth support up to 64 Gbps
- Features metal metal-layer shielded wire for flexibility
- Transmission rate of 16 GT/s
- Maximum rated power of 75W
- Minimum insulation resistance of 95MΩ-Km
- Differential impedance of 100Ω
- Line pair matching impedance within ±15Ω
- Operating temperature range from -20°C to 80°C
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Refund Policy
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Please review the Return Conditions, Return Exceptions and the process on How to Request a Return Authorization (RA) before initiating a return request.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
- A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
- The RA number is valid for 30 days. The returned item must be received within that period.
- The RA number must be included with the return.
- Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
- Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
- Refunds are processed within 7 days after receipt and inspection of the returned item.
- A $100 cleaning fee may apply to domestic robots returned in used or unclean condition.
- A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
- Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
- Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
- Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
- Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
- Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
- Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
- Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
- Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
- On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
- Professional & Specialized Equipment — See the Professional & Specialized Equipment Warranty page and Professional & Institutional Buyers (B2B) section in the Terms & Conditions.
How to Request a Return Authorization (RA)
While the same return policy applies, these orders require a separate contact process for returns.
- RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
- Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".