---
product_id: 722009356
title: "Xiwai PCI-Express 4.0 8X PCIE Detachable to Dual Oculink 4X SFF-8612 SFF-8611 VROC Raid0 Adapter for U.2 SSD eGPU Graphics Card External Dock"
brand: "xiwai"
price: "¥9536"
currency: JPY
in_stock: true
reviews_count: 3
category: "Xiwai"
url: https://www.desertcart.jp/products/722009356-xiwai-pci-express-4-0-8x-pcie-detachable-to-dual
store_origin: JP
region: Japan
---

# PCIe 4.0 - blazing 64Gbps speed Supports RAID0 for ultra-fast SSD setups Dual OCuLink ports for versatile expansion Xiwai PCI-Express 4.0 8X PCIE Detachable to Dual Oculink 4X SFF-8612 SFF-8611 VROC Raid0 Adapter for U.2 SSD eGPU Graphics Card External Dock

**Brand:** xiwai
**Price:** ¥9536
**Availability:** ✅ In Stock

## Summary

> 🚀 Unlock your system’s hidden power with Xiwai’s PCIe 4.0 dual OCuLink adapter!

## Quick Answers

- **What is this?** Xiwai PCI-Express 4.0 8X PCIE Detachable to Dual Oculink 4X SFF-8612 SFF-8611 VROC Raid0 Adapter for U.2 SSD eGPU Graphics Card External Dock by xiwai
- **How much does it cost?** ¥9536 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/722009356-xiwai-pci-express-4-0-8x-pcie-detachable-to-dual)

## Best For

- xiwai enthusiasts

## Why This Product

- Trusted xiwai brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Low Profile:** Fits sleek desktops and small hosts without sacrificing power.
- • **Seamless RAID0 Support:** Maximize storage speed and redundancy with VROC RAID0 capability.
- • **Blazing PCIe 4.0 Speeds:** Harness up to 64Gbps data transfer for next-level performance.
- • **Dual OCuLink Connectivity:** Expand your rig with two SFF-8612 ports for SSDs or eGPUs.
- • **Future-Proof Compatibility:** Backward compatible with PCIe 3.0 and supports latest OCuLink standards.

## Overview

The Xiwai PCI-Express 4.0 8X to Dual OCuLink adapter transforms a single PCIe 4.0 x8 slot into two high-speed SFF-8612 OCuLink ports, enabling connection of ultra-fast NVMe SSDs or eGPU graphics cards. Supporting up to 64Gbps data transfer and RAID0 configurations, it’s designed for professionals seeking to expand storage or GPU capabilities in compact systems. While offering cutting-edge speed and versatility, careful handling is advised due to delicate connectors.

## Description

Buy Xiwai PCI-Express 4.0 8X PCIE Detachable to Dual Oculink 4X SFF-8612 SFF-8611 VROC Raid0 Adapter for U.2 SSD eGPU Graphics Card External Dock: Mini-SAS Cables - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Get things done but need to handle with care - Fit my need to host multiple gpu for local ai. But need to be really careful with those surface mount components and connectors. They are a bit fragile. It's very easy to rip them off the pcb if you apply too much force. That happened to me and I had to solder back the SATA connector. But overall it met my need within budget.
Review: Does Not Work! Could not refund. NVME Drive is not recognized when connected - Bought 2 of these along with recommended cables to provide one of my EPYC servers with oculink ports a way to add more NVME storage. Drives and cables work flawlessly in other systems, but with this adapter the system wouldn't recognize any NVME drive I stuck in it.

## Features

- One detachable PCIE PCI-Express motherboard can be connected,The converter can be installed into the system internally through the oculink interface. Only supports motherboards with detachable PCI-E channels.Control the operation of two disks based on the motherboard PCIE channel,The motherboard without PCIE signal split can only recognize one disk.
- Connectors: Two external OCuLink SFF-8612 female and 1xPCI Express; with standard length and low profile bracket. This PCI Express card expands the PC by one SFF-8612 interface, It can be connected e.g. one SSD/eGPU using an optional cable. The card transmits PCI Express signals using the PCIE4.0 protocol.
- Oculink is the next generation of high-speed internal and external I/O connectors for PCI-E, compatible with T10/ SAS-4 24 Gbps, SFF-8611, SFF-8612, PCIe Gen 3 and Gen 4. It can be connected e.g. one SSD or eGPU Graphics Card by using an optional cable. Suitable for small hosts, desktops, laptops, etc. to convert PCIE sockets to Oculink sockets, with fixing holes for fixing.
- It transmits PCI Express 4.0 signals using the PCIE protocol; Support PCIE 4.0 data transmission, Data transfer rate up to 64Gbps, Support connecting GPU graphics card, SSD, expansion card, etc., backward compatible with PCIE 3.0.
- Transform your works with this cable adapter, facilitating integration of PCI-E into systems requiring OCuLink connection;Elevates your system's capabilities with our adapter, ensuring a stable and robusts connection investments without compromising on space or convenience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F5HPN71X |
| Best Sellers Rank | #20,629 in Computer Internal Components |
| Brand | xiwai |
| Customer Reviews | 3.6 out of 5 stars 27 Reviews |
| Item Weight | 11 Grams |
| Manufacturer | xiwai |
| Model Number | SF-057-OC05-XY |
| Style | PCI-E 8X to Dual 4x Oculink VROC |
| Style Name | PCI-E 8X to Dual 4x Oculink VROC |

## Product Details

- **Brand:** xiwai
- **Item Weight:** 11 Grams
- **Manufacturer:** xiwai
- **Style:** PCI-E 8X to Dual 4x Oculink VROC

## Images

![Xiwai PCI-Express 4.0 8X PCIE Detachable to Dual Oculink 4X SFF-8612 SFF-8611 VROC Raid0 Adapter for U.2 SSD eGPU Graphics Card External Dock - Image 1](https://m.media-amazon.com/images/I/51p5C4GriDL.jpg)
![Xiwai PCI-Express 4.0 8X PCIE Detachable to Dual Oculink 4X SFF-8612 SFF-8611 VROC Raid0 Adapter for U.2 SSD eGPU Graphics Card External Dock - Image 2](https://m.media-amazon.com/images/I/619ckbZj4KL.jpg)
![Xiwai PCI-Express 4.0 8X PCIE Detachable to Dual Oculink 4X SFF-8612 SFF-8611 VROC Raid0 Adapter for U.2 SSD eGPU Graphics Card External Dock - Image 3](https://m.media-amazon.com/images/I/61JxypgKZ0L.jpg)
![Xiwai PCI-Express 4.0 8X PCIE Detachable to Dual Oculink 4X SFF-8612 SFF-8611 VROC Raid0 Adapter for U.2 SSD eGPU Graphics Card External Dock - Image 4](https://m.media-amazon.com/images/I/61VIUfECIVL.jpg)
![Xiwai PCI-Express 4.0 8X PCIE Detachable to Dual Oculink 4X SFF-8612 SFF-8611 VROC Raid0 Adapter for U.2 SSD eGPU Graphics Card External Dock - Image 5](https://m.media-amazon.com/images/I/61quvPTICSL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Get things done but need to handle with care
*by B***E on January 13, 2026*

Fit my need to host multiple gpu for local ai. But need to be really careful with those surface mount components and connectors. They are a bit fragile. It's very easy to rip them off the pcb if you apply too much force. That happened to me and I had to solder back the SATA connector. But overall it met my need within budget.

### ⭐ Does Not Work! Could not refund. NVME Drive is not recognized when connected
*by P***I on November 10, 2023*

Bought 2 of these along with recommended cables to provide one of my EPYC servers with oculink ports a way to add more NVME storage. Drives and cables work flawlessly in other systems, but with this adapter the system wouldn't recognize any NVME drive I stuck in it.

### ⭐⭐⭐⭐⭐ Really really good product.
*by D***W on November 29, 2025*

For an x8 lane connection this is an unbeatable deal. There is even a blank pad to add a second 8i port for a full 16 lane connection. It works amazingly well. The design is a little shabby with the power switch and the way the port is facing but it's a bare PCB. The quality of the connectors and PCIe port is good but the power switch is fragile. It fits any regular PCIe card just fine. The speeds are as if the card is actually installed in the computer. It serves me very well with my GPU testing bench. Also works well with an 8i to (2) 4i break out cable!

## Frequently Bought Together

- Xiwai PCI-Express 4.0 8X PCIE Detachable to Dual Oculink 4X SFF-8612 SFF-8611 VROC Raid0 Adapter for U.2 SSD eGPU Graphics Card External Dock
- 𝐃𝐢𝐋𝐢𝐧𝐤𝐞𝐫 OCulink 4X to OCulink 4X,SFF-8611 to SFF-8611 Cable 100cm
- CY Cable OcuLink PCIe PCI-Express SFF-8611 4i to OcuLink SFF-8611 SSD Data Active Cable 50cm

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-22*