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Black Box RJ-45 modular splitter 2.50 inches

Black Box Corporation

Black Box FM835-R2 RJ-45 Modular Splitter 2.50

SKU CH-5B74-9PQYC MPN FM835-R2

A 2.50-inch RJ-45 modular splitter provides one male and four female network connectors for structured cabling

  • Connector A1 x RJ-45 Male Network
  • Connector B4 x RJ-45 Female Network
  • Length2.50"
  • Splits one RJ-45 port into four connections
  • 50 inch compact length fits tight spaces
  • Male RJ-45 plug connects directly to wall jack
  • Four female RJ-45 ports accept standard patch cables
  • Black Box branded for structured cabling systems

Modular RJ-45 Splitter

The Black Box FM835-R2 is a compact RJ-45 modular splitter built for structured cabling installations. It accepts a single male RJ-45 connector and provides four female RJ-45 ports for distribution. The 2.50-inch body keeps cable runs tidy in panels, wall plates or dense patching fields. It suits network technicians who need to branch one drop into four without adding active hardware.

One-to-Four Port Layout

The decisive specification is the connector arrangement: one RJ-45 male plug feeding four RJ-45 female jacks. This fixed one-to-four split determines whether the unit matches the port count required at the point of use. No other port configuration or gender option is available on this model.

Passive Patch-Panel Integration

The splitter plugs directly into a live network drop, patch panel or wall outlet and immediately presents four female ports for patch cords. It requires no external power, software or rack space beyond the 2.50-inch inline footprint. It frees up switch ports by multiplying a single cable run, but it does not add bandwidth or negotiate link speeds beyond what the connected cabling supports.

Highlights

  • Splits one RJ-45 port into four connections
  • 50 inch compact length fits tight spaces
  • Male RJ-45 plug connects directly to wall jack
  • Four female RJ-45 ports accept standard patch cables
  • Black Box branded for structured cabling systems

Specifications

BrandBlack Box
Connector A1 x RJ-45 Male Network
Connector B4 x RJ-45 Female Network
Length2.50"
Shipping weight0.23 kg
Package size102 × 76 × 51 mm

Questions about this item

What does the 2.50 inch length mean once it is installed in a rack or patch panel?

The 2.50 inch body keeps the four female ports close to the male plug, so the assembly fits in tight patch-panel spaces without adding strain to the incoming cable.

How does the single RJ-45 male connector limit the four female ports in practice?

One male plug carries all four female ports, so the splitter shares the single link; only one connected device can be active at a time.

What clearance does the 2.50 inch modular body need to mount securely?

The compact 2.50 inch housing sits flush against a keystone jack or wall plate, requiring only the depth of a standard RJ-45 cut-out for a secure fit.

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