Price history
ST-JY
ST-JY SlimSAS SFF-8654 8i to Dual U.2 NVMe Cable
Split one SlimSAS 8i port into two U.2 NVMe drives with integrated SATA power and no external adapter required
$30.00*
View on Amazon
✓ In Stock on Amazon.com
*Price sourced from Amazon.com. Last updated:Jul 31, 2026.Price and availability are subject to change.
Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.
Notice a mistake? Let Us Know
Overview
Key Features
PCIe 4.0 High-Speed NVMe Connectivity--- Convert your motherboard's SFF-8654 8i SlimSAS port into two U.2 SFF-8639 NVMe SSD connections. Designed for PCIe 4.0 bandwidth, this cable delivers full 24Gbps data transfer rates—ideal for high-performance servers, workstations, and enterprise storage arrays requiring maximum NVMe throughput.
Integrated 15-Pin SATA Power – No External Adapter Needed---Unlike standard cables that require separate power connections, this 0.5m SlimSAS to U.2 cable comes with a built-in 15-pin SATA power connector. Power your U.2 NVMe SSDs directly and stably without external PCIe power adapters—cleaner installation, fewer points of failure.
Full-Shielded Design for Signal Integrity---Fully enclosed shielding throughout the entire cable length protects against electromagnetic interference (EMI) and crosstalk. 85Ω impedance-matched with AWG30 silver-plated twinax conductors ensure reliable PCIe 4.0 signal transmission, minimizing data loss and maintaining stable performance even in dense server environments.
0.5M Optimized Length for Rackmount & Server Builds---Precision-engineered at 0.5 meters—the ideal length for connecting SlimSAS ports on motherboards or HBA/RAID cards to U.2 NVMe SSDs in rackmount servers, NAS systems, and HPC setups. Short enough to avoid cable clutter, long enough for flexible internal routing.
Universal Compatibility – Servers, Workstations & Custom Builds---Compatible with motherboards, HBA/RAID cards, and backplanes featuring SFF-8654 8i (74-pin) SlimSAS ports. Plug-and-play—no drivers or software required. Perfect for data centers, enterprise IT, and DIY server enthusiasts.
Specifications
Brand
ST-JY
Host Connector
SlimSAS SFF-8654 8i (74-pin)
Device Connectors
Dual U.2 SFF-8639 NVMe
Length
0.5 meters
Interface
PCIe 4.0
Data Transfer Rate
Up to 24Gbps
Power Connector
Integrated 15-pin SATA
Conductors
AWG30 silver-plated twinax
Impedance
85 ohm
Shielding
Full-length enclosed
Compatibility
Motherboards, HBA/RAID cards, backplanes
Frequently Asked Questions
Does this cable need a separate power adapter for the U.2 drives?
No. It includes an integrated 15-pin SATA power connector that powers the U.2 NVMe SSDs directly, so no external PCIe power adapter is required.
How many U.2 drives can I connect with this cable?
Two. It splits a single SFF-8654 8i SlimSAS port into two U.2 SFF-8639 NVMe connections from one host port.
What host port do I need on my motherboard or card?
An SFF-8654 8i (74-pin) SlimSAS port. The cable works with motherboards, HBA/RAID cards, and backplanes that provide this connector.
Will this cable support full PCIe 4.0 speeds?
It is designed for PCIe 4.0 bandwidth and rated for full 24Gbps transfer, using 85-ohm AWG30 silver-plated twinax conductors and full shielding to maintain signal integrity.
Is 0.5 meters long enough for my server build?
The 0.5-meter length is optimized for rackmount servers, NAS systems, and HPC setups, aiming to avoid clutter while allowing flexible internal routing between the host port and drives.
Do I need to install drivers or software to use it?
No. The cable is plug-and-play and requires no drivers or software on compatible SlimSAS-equipped hosts.
Related Products
