PCIe x16 to U.2 SSD Extender

K37SF-BK

Product ID: K37SF-BK
Interface: PCIe x16 / U.2
Application: U.2 NVMe Extension
Shelf time：2025-12-10 11:07:19
Product description: PCIe x16 to U.2 extender adapter for U.2 NVMe SSD gen5
INQUIRY

ADT-Link PCIe 5.0 x16 to U.2 (SFF-8639) Extension Cable

Brand name: ADT-LINK

Product name: PCIe x16 to U.2 extension cable

Product model: R37SF-BK

Transfer speed: PCIe 5.0 x4 full speed, 128G/bps (Max.)

Wire length: 5 ~ 100 cm, the length can be customized

Application: PCI-E x16 to U.2 (SFF8639) extension

ADT K37 series Part-Number Description:

Part-Number	Description	Bandwidth
R37SF-BK	PCIe x16 to U.2 cable extension 180 degree connector	PCIe 5.0 x4 (128G/bps)
R37SF-F2	PCIe x16 to U.2 cable extension 180 degree connector with Full-height baffle	PCIe 5.0 x4 (128G/bps)

Cable length Description:

The length of the wire refers to the part of the visible wire. It does not include the PCB and the connector. For the wire length, please refer to the 5cm blue arrow in the figure below.

Product Advantages:

1. Cable Advantage: Uses high-speed cables independently developed and designed by ADT, and features Taiwanese-imported connectors, supporting stable full-speed transmission of PCIe 5.0 x4 128Gbps.

2. Cable Length Advantage: Customizable lengths from 3 cm to 1 meter are available. The adapter cables sold in our store have low impedance, and lengths within 50 cm support full PCIe 5.0 speed.

3. Differential Signal No-Via Design: Eliminates signal attenuation and interference problems caused by parasitic capacitance and inductance, and prevents CAF micro-short circuits, resulting in a durable product.

4. High-Quality Materials: The product uses high-quality materials, features precision PCB manufacturing, thickened copper foil to 1oz, and sufficient gold plating on the gold fingers for excellent conductivity, reducing the risk of crashes and blue screen errors caused by oxidation and increased resistance.

5. Durable Cable Design: The cable itself is highly durable. A 3mm thick PCB pad protects the metal welding points, secured with screws and hexagonal nuts. The product is robust, reliable, resistant to pulling, and interference-free, preventing wire breakage or loose connections. The cable is flexible and bendable without affecting performance.

6. Low-Profile and Widened PCB Design: The low-profile design prevents interference with graphics cards, while the widened and lengthened design makes installation easier and reduces the risk of damage.

Q&A:

Does the K37SF-BK model support PCIe 5.0?

Laboratory tests show it can achieve full PCIe 5.0 speed.

The test data is as follows:

Is there any EMI shielding for Cable?

With metal shield. The extender utilizes the latest materials for EMI shielding with five sole flat cables design. This technique allows each cable to be fully covered by electromagnetic interference shielding with conducting polymer to guard against incoming or outgoing emissions of electromagnetic frequencies, minimize disturbance and degradation on performance, and reduce the weight of the extender.

What is the thickness of the cable? Is it soft? Can it be bent?

The wire is the fifth generation PCIe dedicated wire independently developed by ADT, with a diameter of only 0.8mm, which can be bent freely without affecting its use.