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Black rectangular VGA splitter with four output ports and one input port

Black Box Corporation

Black Box Corporation AC1056A-4 4-port VGA video splitter

SKU CH-SJ9G-93D1T MPN AC1056A-4

Distributes one VGA source to four displays up to 210 feet at 1920 x 1440 resolution

  • Port count4
  • Input ports1x VGA female
  • Output ports4x VGA female
  • Maximum supported resolutions1920 × 1440 at 70 Hz
  • Product typeVGA Splitters
  • Product colorBlack
  • Broadcast PC video to four monitors up to 210 feet away
  • Supports crisp 1920 x 1440 resolution at 70 Hz
  • Compact 3.3" wide unit fits tight installations
  • Includes 6 ft input and three 10 ft output cables
  • TAA compliant and WEEE RoHS certified for government use

Compact VGA Video Splitter

The Black Box AC1056A-4 distributes a single VGA source to four displays simultaneously. It supports maximum resolutions of 1920 x 1440 at 70 Hz for clear image reproduction. This unit suits trade shows, training rooms, and point-of-sale installations requiring duplicated video output.

Bundled Cables for Immediate Setup

The package includes one 6ft HD15 male-to-male input cable and three 10ft HD15 male-to-female output cables. These accessories allow connection of the source and three remote monitors up to 210 feet away without extra purchases. WEEE and RoHS certifications confirm environmentally responsible manufacturing.

Four Output Ports Define Capacity

A single VGA female input feeds four VGA female outputs, fixing the maximum display count at four screens. Builders needing five or more simultaneous displays must choose a different distribution method. The 3-year limited warranty covers the splitter unit itself.

How it compares

Measured against everything we stock in HDMI & Video Splitters, at today’s prices. Recalculated every night.

Price $152.99
Pricier than about 90% of the 1,127 comparable items (median $20.99).

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Specifications

Product
Brand nameBlack Box
Model nameAC1056A-4
Product typeVGA Splitters
Product colorBlack
Display
Maximum supported resolutions1920 × 1440 at 70 Hz
Ports & slots
Port count4
Input ports1x VGA female
Output ports4x VGA female
Size & build
Product dimensions1.6 inH × 3.3 inW × 2.7 inD (4.1 × 8.4 × 6.9 cm)
Product weight6.2 lb (2.8 kg)
Shipping weight2.70 kg
Package size305 × 273 × 114 mm

Questions about this item

Does the AC1056A-4 require any periodic maintenance or component replacement during normal operation?

The splitter is a passive device with no moving parts or user-serviceable components, so no scheduled maintenance or part replacement is needed under typical use.

What resolution and refresh-rate ceiling limits sustained performance when driving four displays?

The unit supports a maximum of 1920 x 1440 at 70 Hz across all four outputs; pushing beyond that resolution or refresh rate will degrade signal quality first.

How much heat or noise does the AC1056A-4 produce when running continuously all day?

With no internal fan or active circuitry, the compact metal enclosure stays silent and only warms slightly during continuous operation.

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