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IO Crest SY-PEX50133 SouthBridge Max PCIe 4.0 x4 Multi-Function Expansion Card - 4x M.2 NVMe, 4x SATA III, 2x USB-C (20G/10G), 2x USB-A (10G), No Bifurcation Required
- Turn a single PCIe 4.0 x4 slot into 12 new ports - four M.2 NVMe, four SATA III, and four USB - without splitting lanes or touching your BIOS
- Built on a full AMD B650 chipset instead of a basic controller chip, so you get rock-solid stability and true plug-and-play support across Windows, Linux, and macOS
- The easy way to massively expand storage for NAS builds, media servers, and multi-drive workstations without a full motherboard upgrade
- Four M.2 M-Key slots with intelligent bandwidth allocation automatically balance speed across drives, maximizing throughput whether you're running one SSD or four
- Four 6 Gb/s SATA ports add room for traditional HDDs and SSDs right alongside your NVMe drives
- Two USB-C ports (one at 20 Gbps, one at 10 Gbps) plus two 10 Gbps USB-A ports deliver high-speed connectivity for external drives and peripherals
- No bifurcation, no BIOS configuration, no driver headaches - just install and go
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Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 1 year
- Limited Warranty period (labor): 1 year
- Read full details
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.com's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-909-548-7706
- Support Email: support@sybausa.com
- Support Website
- View other products from Syba
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The IO Crest SY-PEX50133 is a PCIe 4.0 x4 expansion card that adds four M.2 NVMe slots, four SATA III ports, and four USB ports without requiring PCIe bifurcation. It suits NAS builders, media-server users, and workstation owners who want to add storage and connectivity through one slot.
Recommended For
- Desktop NAS or media-server builders who need to add NVMe storage and SATA drives in one free PCIe slot, without replacing the motherboard or enabling PCIe bifurcation.
- Workstation users who keep active projects or scratch data on multiple NVMe drives and also need SATA storage and fast USB ports, with workloads that can share the card’s PCIe connection.
- Desktop PC owners short on motherboard storage and USB connections who have a PCIe x4 slot available and want to add several kinds of connectivity without a motherboard upgrade.
- Users who want to attach high-speed external drives and peripherals alongside internal storage, and can connect the card’s required 6-pin power cable when using high-power USB devices.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Desktop PC expansion through a PCIe x4 slot, with SATA and USB connectivity |
| Connectivity And Interfaces | PCIe x4, SATA 6.0 Gb/s, USB-A, USB-C, and Memory Stick Micro interfaces |
| Compatibility | Compatible with desktop and personal computers |
| Dimensions And Weight | 7 × 4.5 × 1 inches; weighs 0.8 pounds |
| Model Identifiers | IO CREST SY-PEX50133 |