Middle Atlantic MON MT DYN Clmn Dual BK - MM3-C-220-BK

Middle Atlantic MM3-C-220-BK Dual Monitor Dynamic Column Mount — Black

Overview

The Middle Atlantic MM3-C-220-BK is a dual-display column mount engineered for command centers, security operations rooms, and AV integration projects where two monitors need to sit side-by-side at operator-accessible heights. The MM3-C-220-BK (often searched as MM3 C 220 BK) spans 37.67 inches wide, giving you full side-by-side coverage across two screens without the cramped overlap you get from narrower arm systems. The aluminum construction keeps weight down while the dynamic articulation lets operators tilt and adjust displays on the fly — no tools required mid-shift.

Key Features

• 37.67-inch total width (95.7 cm): That span comfortably seats two monitors with real separation between them — important in dispatch or SOC environments where operators need to glance between screens without turning their heads far. Narrow mounts force monitors inward and create neck strain over long shifts.
• 50 lb weight capacity (22.7 kg): Supports two commercial-grade displays with margin to spare. Most 27–32-inch commercial monitors weigh 12–18 lbs each — you're well inside the rated load even with heavier professional panels.
• Dynamic (articulating) arm design: The "DYN" designation means the arm extends and retracts rather than fixing the displays at a single depth. Depth adjusts from 2.45 to 20.6 inches, giving each operator the ability to push screens back when not in use or pull them close for detail work — a practical feature in shared-workstation environments.
• Height adjusts from 8.82 to 28.82 inches: That 20-inch vertical range covers seated operators of virtually any height without requiring custom column cuts or shim stacks. Set it once per workstation configuration and leave it.
• Aluminum construction: Aluminum keeps the mount itself light relative to its load rating, so column stress stays manageable even with both displays at full extension. More rigid than plastic-framed alternatives under sustained load.
• Mounting hardware included: Eliminates a separate hardware order — the fasteners needed for installation ship with the unit, which matters when you're commissioning multiple workstations on a tight schedule.
• Black (BK) finish: The black finish matches standard rack and console equipment in most control room and operations center color schemes, reducing the visual clutter that comes with mixing silver and black components.

Integration & Compatibility

The MM3-C-220-BK is designed for column-mount deployments — it attaches to a vertical column or post rather than a wall or desk grommet. Verify your column diameter against Middle Atlantic's MM3 series monitor mount compatibility specs before ordering. The mount is available internationally, making it a viable option for multi-site global deployments. TAA compliance is not confirmed for this SKU — federal procurement officers should verify against current GSA schedule requirements before specifying. Middle Atlantic is part of the Middle Atlantic AV infrastructure catalog, and this mount pairs naturally with Middle Atlantic AV consoles and furniture in integrated control room builds. If you're planning a full workstation, also review rack and enclosure options for equipment housing alongside the display array.

Frequently Asked Questions

Q: How many monitors does the MM3-C-220-BK support?

A: Two displays. The mount is rated for dual-monitor configurations and spans 37.67 inches wide to accommodate both screens side by side.

Q: What is the weight capacity?

A: 50 lbs (22.7 kg) total. This covers two commercial monitors with capacity to spare for most standard display sizes.

Q: What depth adjustment range does the dynamic arm provide?

A: The arm adjusts from 2.45 to 20.6 inches of depth, allowing operators to extend or retract displays as needed without tools.

Q: Is the MM3-C-220-BK TAA compliant?

A: No. This SKU is not TAA compliant per the manufacturer's specifications. Federal buyers with TAA requirements should select an alternate model.

Q: Does mounting hardware come included?

A: Yes. Mounting hardware is included in the box.

Q: What is the mount made of?

A: The primary structural material is aluminum, which provides a strong, lightweight frame suitable for sustained dual-monitor loads in commercial environments.

Jerry Tildsen

The MM3-C-220-BK is a column-mount I spec into security operations centers and dispatch rooms where operators are running two screens all day. The 20-inch vertical adjustment range (8.82 to 28.82 inches) is the spec I look at first — it means you can set this mount correctly for each operator without cutting columns or adding shims, which matters when you're outfitting 10 or 20 identical workstations and need consistency across the room.

Technical Highlights:

• 50 lb load rating: Rated for 22.7 kg across both displays — enough headroom for 27 to 32-inch commercial panels without approaching the limit, which keeps the column stress predictable over years of daily use.
• 2.45 to 20.6-inch depth range: The dynamic arm's full travel lets a seated operator pull screens to within 2.45 inches of the column face or push them nearly 21 inches out. That's real ergonomic flexibility, not nominal.
• 37.67-inch horizontal span: At just under 38 inches, this mount separates two monitors far enough that each has its own visual zone — operators aren't pivoting between overlapping bezels, which reduces fatigue in long-watch environments.

Deployment Considerations:

• This is a column mount, not a wall or desk unit. Confirm your column or post dimensions against Middle Atlantic's MM3 series specs before ordering — the wrong column diameter means the mount won't seat correctly.
• TAA compliance is not supported on this SKU. If your project is a federal contract or GSA-schedule procurement, flag this early and source a compliant alternate before the install date.

Best fit: security operations centers, 911 dispatch consoles, and broadcast control rooms where two-screen operator stations are the standard build and column-mount infrastructure is already in place.