M Block with Female & Male Connectors

With Both Male and Female, Pre-Tested, and Pre-Wired Connectors Installing Your Wires is a Snap

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What's special about this wiring block?

  • Compact designed to fit into the smallest of equipment rooms or closets
  • 50-Pair, 25 male connectors on the right and 25 female connectors on the left for fast installation
  • These connecting blocks use phosphor bronze, quick-connect insulation clips for easy set-up
  • Made of a fire-retardant plastic that can withstand high impact so it will not break easily
  • Click for More Features

Leviton’s M Block with female and male connectors makes it easy to set-up your phone or communications line. Without the use of a punchdown tool, you can just plug the connector into the block and you’re ready to go.


LE-40066-MW2 M Block with Female & Male Connectors 10" H x 3-5/16" W x 1-3/16" D
  • Mounting holes on the top and bottom for ease of mounting onto a backboard
  • 25 Pair connector has a hook and loop tie attached to provide additional cable management
  • Phosphor bronze quick-connect insulation displacement 66-clips for electrical and mechanical stability
  • Compact design is ideal for locations with limited space


Part # LE-40066-MW2
Height 10"
Width 3-5/16"
Depth 1-3/16"
Number of Connectors 25-pair






Snap-On Cover for M BlocksSnap-On Cover for M Blocks
Made of transparent plastic, it easily permits the viewing of wiring and pair assignments without removal.
M Block BracketM Block Bracket for Jack/Connector Mounting
Standoff bracket for 25- and 50-pair M blocks, 89D 110 wiring bases, and QuickPort® Patch Blocks.
M Block, 25-PairM Block: 25-Pair
This 66 Connecting Block enables you to quickly interconnect phone lines and communication cable. Simply place the unstripped wire on the 66 Connecting Block clip and press down with a punch down tool. The tool automatically puts wire in place and trims off any excess.
Leviton Split M BlockSplit M Block: 50-Pair
The Split M block contains 50 rows of clips, but instead of one 4-slot clip as the 25 pair M Block, each row contains two separate 2-slot clips.
M Block with Female ConnectorM Block with Female Connector
The 50-pair M block contains prewired, pretested 25-pair female connector on the left side fanning strip to hasten the connection of incoming pairs. High-impact, fire-retardant UL 94V-0 plastic construction
Modular AdaptersModular Adapters

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