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Green circuit board with two horizontal PCIe x16 slots spaced 20mm apart and a 4-pin CPU power connector

Vszerda

Vszerda PCIe 4.0 x16 to x8x8 Split Card with CPU4P Power Cable

SKU CH-0JCS-M60WZ

Splits one PCIe 4.0 x16 slot into two x8 lanes with a clock-splitting IC and CPU 4-pin power connector

  • Splits one x16 slot into two x8 lanes
  • PCIe 4.0 protocol compatible with gen3 and gen4
  • Gold fingers thickened to 5U for reliable contact
  • 20 mm slot spacing accepts extension cable adapters
  • On-board clock splitting IC with LED power indicator

PCIe 4.0 x16 to dual x8 split card

This Vszerda expansion card divides a single PCIe 4.0 x16 slot into two x8 lanes using an onboard clock-splitting IC. It requires a motherboard BIOS that can switch the slot operating mode to x8x8. A CPU 4-pin auxiliary power connector and power-on LED indicator are included for stable operation.

Practical limits of the PCIe 4.0 x16 bifurcation

The card delivers full PCIe 4.0 bandwidth across both x8 slots only when the platform supports bifurcation and the slot is configured to x8x8 mode. Without BIOS support for lane splitting the second slot will remain inactive. The 20 mm slot spacing fits standard expansion cards but may restrict thicker dual-slot coolers or tightly packed layouts.

Upgrades from single-slot risers

Builders moving from a single PCIe 4.0 x16 device or a passive riser gain a second x8 connection for add-in cards such as capture controllers or network adapters. The jump is worthwhile when the motherboard exposes bifurcation control and the chassis can accommodate the 20 mm spaced slots with the included CPU 4-pin power cable connected.

Highlights

  • Splits one x16 slot into two x8 lanes
  • PCIe 4.0 protocol compatible with gen3 and gen4
  • Gold fingers thickened to 5U for reliable contact
  • 20 mm slot spacing accepts extension cable adapters
  • On-board clock splitting IC with LED power indicator

Specifications

No published specifications for this item yet.

Questions about this item

Should I use this split card if my motherboard only supports a single x16 slot?

The card requires the motherboard BIOS to support bifurcation so the x16 slot can operate in x8 x8 mode; without that setting both slots will not function.

What bandwidth does each slot deliver when the card is installed?

Each slot runs at PCIe 4.0 x8, giving half the full x16 bandwidth per device.

Does the CPU 4-pin power connector limit the card to older PCIe standards?

The auxiliary CPU 4-pin power connector supplies extra power for high-draw cards but does not change the PCIe 4.0 x8 x8 electrical interface.

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