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Green circuit board with five black SATA ports and a gold PCIe x4 edge connector

Syba

Syba SI-PEX40139 5-port SATA 6 Gb/s expansion card

SKU CH-42J7-N33GW MPN SI-PEX40139

Adds five SATA 6 Gb/s ports via a PCIe x4 slot, delivering up to 1700 MB/s throughput

  • Internal ports5 x SATA III 6 Gb/s
  • Transfer speedUp to 1,700 MB/s
  • Product typePCI Express to SATA Card
  • Key featuresConnect five SATA drives to any free PCI-e x4 slot, providin
  • Add five SATA drives through one PCI-e x4 slot
  • Up to 1700 MB/s transfer rate for fast storage access
  • Plug-and-play operation with no extra software needed
  • Supports Port Multiplier on non-RAID configurations
  • PCI Express to SATA controller card design

Five SATA III ports

The Syba SI-PEX40139 adds five internal SATA III 6 Gb/s ports through a single PCI Express x4 slot. It is designed for builders who need more drive connections than the motherboard provides, supporting up to 1700 MB/s aggregate throughput. The card operates in non-RAID mode and works with port multipliers that are not configured as RAID arrays. Plug-and-play operation means no extra driver installation is required on supported operating systems.

x4 slot and standard connectors

A full-height bracket fits typical desktop cases, and the x4 edge connector occupies one PCI Express expansion slot. Five standard SATA data headers line the top edge, allowing straight or right-angle cables to be routed cleanly behind the motherboard tray. No external power connector is present, so all attached drives must draw power from the system’s own supply. The low-profile circuitry leaves room for adjacent cards in tight builds.

Check slot and drive count

Verify that a free PCI Express x4 slot is available and that the motherboard firmware recognises additional SATA controllers at boot. Confirm the power supply has enough SATA power leads for every new drive you plan to attach. If you require hardware RAID or more than five ports, this card will not meet those needs.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $39.99
Pricier than about 63% of the 891 comparable items (median $30.99).

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Specifications

Product
Brand nameSYBA
Model nameSI-PEX40139
Product typePCI Express to SATA Card
Performance
Transfer speedUp to 1,700 MB/s
Ports & slots
Internal ports5 x SATA III 6 Gb/s
Size & build
Shipping weight0.19 kg
Package size173 × 140 × 46 mm

Questions about this item

What bandwidth does the PCIe x4 interface cap the five SATA 6 Gb/s ports at in practice?

The card delivers up to 1700 MB/s total throughput across the PCIe x4 link, which is the practical ceiling for all five ports combined.

What slot and clearance does the SI-PEX40139 need to fit in a case?

It requires one free PCIe x4 slot (or larger) and a standard full-height bracket; low-profile brackets are not included.

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

Seat the card in the PCIe slot, attach SATA data cables to the five internal ports, then power each drive from the PSU — forgetting drive power is the common mistake.

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