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Flat grey cable with wide MCIO connector splitting to two U.2 ports and 15-pin power plug

SMUGDESK

SMUGDESK PCIe 5.0 MCIO x8 to 2 x SFF8639 U.2 NVMe Cable 15Pin Power 65cm

SKU CH-CECJ-TQTFR

PCIe 5.0 cable connects one MCIO x8 port to two U.2 NVMe SSDs with integrated 15-pin power over 65 cm

  • PCIe 5.0 bandwidth drives blistering NVMe U.2 SSD speeds
  • Single MCIO x8 port splits to two SFF8639 U.2 connectors for dual SSD connection
  • Built-in 15-pin power line feeds U.2 NVMe SSDs directly, removing extra cables
  • Short 65 cm length fits tight server racks and internal storage layouts
  • Works with Supermicro, Intel, Dell, HP servers, RAID adapters and U.2 backplanes

Server storage expansion

This PCIe 5.0 cable connects two U.2 NVMe solid-state drives to a single MCIO x8 port on enterprise server boards or RAID adapters. The integrated 15-pin power line feeds both drives directly, removing the need for separate power cables inside the chassis. It targets system integrators and data-centre operators who need dense, high-speed storage without extra cabling.

Build and daily use

The 65 cm length suits tight 1U or 2U rack layouts where long cables would block airflow or interfere with drive trays. MCIO and SFF-8639 connectors latch securely, resisting vibration in densely packed enclosures. Integrated power simplifies installation and reduces the number of connections that can loosen during maintenance or drive swaps.

Deciding specification

Full PCIe 5.0 bandwidth across both U.2 links is the single figure that determines whether this cable matches the host controller and SSD generation. If the server or adapter only supports PCIe 4.0 or 3.0, the cable will still function but will not deliver the rated throughput.

Highlights

  • PCIe 5.0 bandwidth drives blistering NVMe U.2 SSD speeds
  • Single MCIO x8 port splits to two SFF8639 U.2 connectors for dual SSD connection
  • Built-in 15-pin power line feeds U.2 NVMe SSDs directly, removing extra cables
  • Short 65 cm length fits tight server racks and internal storage layouts
  • Works with Supermicro, Intel, Dell, HP servers, RAID adapters and U.2 backplanes

Specifications

No published specifications for this item yet.

Questions about this item

What bandwidth does the PCIe 5.0 MCIO x8 interface cap at in practice?

The MCIO x8 link carries full PCIe 5.0 bandwidth, so each of the two U.2 NVMe SSDs can run at its rated PCIe 5.0 speed without bottleneck.

What physical clearance and connectors does the 65 cm cable need inside the chassis?

It needs room for one MCIO x8 plug on the host side and two SFF-8639 U.2 plugs plus the integrated 15-pin power lead on the drive side, all within a 2.1 ft reach.

How is the cable installed, and which step do builders often miss?

Plug the MCIO end into the motherboard or RAID adapter, seat both U.2 connectors onto the SSDs or backplane, then attach the 15-pin power lead — forgetting the power lead leaves the drives unpowered.

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