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A green printed circuit board with a horizontal PCIe x16 slot and edge connector

iStarUSA Inc.

iStarUSA Inc. DD-666-2U-M 2U PCIe x16 Riser Card Middle Position

SKU CH-PN5H-4XG4K MPN DD-666-2U-M

A 2U PCIe x16 riser card that places the slot in the middle position for motherboard slot six

  • Product typeRiser Card Middle Position
  • Details2U PCIe x16 to PCIe x16 Riser Card Middle Position MB Slot P
  • Fits 2U rack height for dense server builds
  • PCIe x16 to x16 riser keeps full bandwidth
  • Middle-position design aligns with motherboard slot 6
  • Note: too tall for D Storm 2U chassis, needs modification
  • Model DD-666-2U-M listed by manufacturer June 21, 2013

2U PCIe x16 Riser for Middle Slot

The iStarUSA DD-666-2U-M is a PCIe x16 to x16 riser card built for a 2U rackmount chassis. It places an expansion card in the middle motherboard slot position, numbered 6. This component suits system integrators assembling dense servers or workstations where horizontal card clearance is required.

Replaces standard vertical mounting in 2U builds

Use this riser when a full-height add-in card cannot fit vertically in a 2U enclosure. The jump is worth it when the chassis depth allows a horizontal layout and the motherboard slot layout matches position 6. It does not serve builds where the card must remain upright or where the slot position differs.

Limited by 2U height and fixed slot alignment

The PCIe x16 electrical interface runs through the riser without signal conversion, so bandwidth matches the host slot. Practical limits come from the 2U form factor: the assembly is noted as too tall for a D Storm 2U chassis and requires modification to fit. Builders must verify internal clearance and slot indexing before installation.

How it compares

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

Price $51.99
Pricier than about 71% of the 891 comparable items (median $30.99).

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Specifications

Product
Brand nameiStarUSA
Model nameDD-666-2U-M
Product typeRiser Card Middle Position
Size & build
Shipping weight0.09 kg
Package size198 × 155 × 46 mm

Questions about this item

Will the 2U riser card fit in a standard 2U chassis without modification?

The middle-position riser is noted as too tall for the D Storm 2U chassis and requires modification; verify internal clearance before installing.

Which motherboard slot does the riser connect to and how is the card secured?

It plugs into motherboard slot position 6 using a PCIe x16 edge connector; secure the riser bracket to the chassis with screws to prevent signal loss from vibration.

What long-term upkeep does the PCIe x16 riser need?

No moving parts exist; periodically reseat the edge connector and blow dust from the gold fingers to maintain reliable contact.

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