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Beige DB9 serial extension cable with metal EMI/RFI hoods, male-to-male, 25 ft 7.6 m

Black Box Corporation

Black Box Corporation EDN12H-0025-MM network ethernet cable 25 ft 7.6 m

SKU CH-7RG9-GKH2K MPN EDN12H-0025-MM

A 25-foot DB9 serial extension cable with EMI/RFI shielding and fully wired straight-through pins

  • 25 ft length extends serial devices cleanly
  • 100 % aluminium foil shield blocks EMI noise
  • All 12 pins wired straight through for reliable data
  • Removable metal hoods allow easy repinning
  • Heavy-duty build ensures long-lasting connections

Serial DB9 Extension Cable

This 25-ft (7.6-m) male-to-male DB9 cable extends serial connections for printers, terminals and similar devices. All nine pins are wired straight through. A full aluminum foil shield and metal EMI/RFI hoods protect signals from noise. The hoods are removable for repinning if required.

Upgrade From Shorter or Unshielded Leads

Replace a short factory cable when equipment must sit farther from the host port. The shielded design is worth it in electrically noisy environments where unshielded cables drop characters or cause errors. If the existing run is already long enough and noise-free, the extra length and shielding add no benefit.

25-Foot Reach With Full Shielding

The 25-ft length covers typical bench-to-rack or cross-room serial links while the 100 % foil shield and metal hoods maintain signal integrity. Builders needing runs beyond 25 ft or a different connector gender will need another solution. Heavy-duty construction supports repeated mating cycles in permanent installs.

Highlights

  • 25 ft length extends serial devices cleanly
  • 100 % aluminium foil shield blocks EMI noise
  • All 12 pins wired straight through for reliable data
  • Removable metal hoods allow easy repinning
  • Heavy-duty build ensures long-lasting connections

Specifications

BrandBLACK BOX NETWORK SERVICES
Shipping weight0.58 kg
Package size381 × 356 × 305 mm

Questions about this item

What size DB9 port does this cable fit?

It connects to any standard DB9 serial port using male connectors on both ends, with all nine pins wired straight through.

How do I install the removable EMI/RFI hoods during setup?

Slide the metal hoods off before repinning if needed, then snap them back on to maintain shielding after the connectors are seated.

When should I replace this 25-ft serial extension cable?

Replace it if the foil shield is damaged, pins bend, or intermittent signals appear; the heavy-duty build and life guarantee cover normal long-term use.

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