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Small green Mini PCI Express card with two metal ports, 30mm by 51mm

DELL

DELL 2-Port Isolated CardBus 2.0B Mini PCI Express Card N8V21 laptop replacement part

SKU CH-HQS6-TATQ3

Adds two isolated CardBus 2.0B ports via Mini PCI Express for Dell OptiPlex FX and Precision workstations, with 2500V RMS isolation

  • Compatible ManufacturerFor Dell
  • Compatible ModelsFor Dell OptiPlex FX Series, Precision Workstations
  • Dimensions1.18" x 0.63" x 0.20" (L x W x H)
  • Weight0.03 lbs
  • Dual isolated ports prevent ground loops and electrical interference
  • Industrial durability withstands harsh temperature, humidity and EMI conditions
  • Plug-and-play mPCIe integration requires no external power
  • 2500V RMS isolation safeguards sensitive equipment from voltage spikes
  • Compact 30mm x 51mm form factor fits embedded Dell systems

Dell N8V21 CardBus Expansion Card

The Dell N8V21 is a Mini PCI Express expansion card that adds two isolated CardBus 2.0B ports to compatible Dell OptiPlex FX Series and Precision Workstations. It is designed for industrial and embedded applications requiring robust serial or parallel connectivity.

Dual 2500V RMS Isolated Ports

The card provides two ports with 2500V RMS isolation to prevent ground loops and protect sensitive equipment from voltage spikes and electrical noise. This specification determines suitability for harsh environments, automation, and medical devices where signal integrity is critical.

Tool-Free mPCIe Installation

The card installs directly into an available Mini PCI Express slot without external power cables or drivers for basic detection. Its compact 30mm x 51mm form factor fits space-constrained chassis. Buyers must verify their specific Dell model lists the N8V21 as compatible, as mPCIe slot pin-outs and BIOS whitelists vary across OptiPlex and Precision lines.

Highlights

  • Dual isolated ports prevent ground loops and electrical interference
  • Industrial durability withstands harsh temperature, humidity and EMI conditions
  • Plug-and-play mPCIe integration requires no external power
  • 2500V RMS isolation safeguards sensitive equipment from voltage spikes
  • Compact 30mm x 51mm form factor fits embedded Dell systems

Specifications

BrandDell
Part NumberN8V21
Compatible ManufacturerFor Dell
Compatible ModelsFor Dell OptiPlex FX Series, Precision Workstations
Dimensions1.18" x 0.63" x 0.20" (L x W x H)
Weight0.03 lbs

Questions about this item

What does the 2500 V RMS isolation actually do inside my system?

The 2500 V RMS isolation on each of the two ports breaks ground loops and blocks voltage spikes so sensitive equipment stays protected in industrial or medical environments.

What does the Mini PCI Express interface limit in practice?

The card uses a Mini PCI Express slot and follows the CardBus 2.0B standard, so it works with legacy industrial protocols without needing external power.

Will the 30 mm by 51 mm board fit my Dell OptiPlex FX or Precision workstation?

Yes, the compact 30 mm x 51 mm form factor is Dell-validated for OptiPlex FX Series and Precision workstations that have an mPCIe slot.

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