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The Black Box AC555A-4-R2 is a 4-Port VGA transmitter designed to distribute a single VGA video source to up to four remote receivers using CATx cabling. It is an integral component of long-distance VGA extender systems, delivering crisp, clear video signals over extended runs — perfect for classrooms, conference halls, training centers, or digital signage networks.
As part of the reliable Black Box extender family, this unit ensures long-distance VGA signal integrity, offering plug-and-play installation and dependable performance in demanding AV environments.
This VGA Transmitter delivers high-resolution video across CAT5/5e/6 cabling to four receivers simultaneously. Compact and robust, its design allows flexible deployment with excellent electro-magnetic shielding for interference-free operation.
The AC555A-4-R2 supports resolutions up to 1920 × 1200 with proper receivers, includes DIP switch settings for fine-tuning video quality, and allows daisy-chaining with repeaters for even larger VGA distribution networks. Its LED indicators give at-a-glance status for quick installation and troubleshooting.
The Black Box AC555A-4-R2 ensures consistent, reliable video distribution over CATx cabling. Its sturdy construction, extended reach, and multiple-port design provide stable performance suitable for mission-critical AV installations in education, corporate, and public environments.
| Specification | Details |
|---|---|
| Part Number | AC555A-4-R2 |
| Brand | Black Box |
| Product Type | 4-Port VGA Transmitter |
| Input | 1 × VGA video source |
| Outputs | 4 × CATx links (VGA receivers required) |
| Max Resolution | Up to 1920 × 1200 |
| Transmission Distance | Up to 300 m (depending on receiver/cabling) |
| Control | DIP switches for video fine tuning |
| Indicators | Power & link LEDs |
| Compatibility | Black Box VGA Extender/Receiver systems |
| Cable Type | Standard CAT5/5e/6 UTP/STP |
| Enclosure | Metal housing |
| EMI Protection | Shielded design for interference reduction |
| Power Supply | External DC adapter |
| Power Consumption | ≤ 3W |
| Mounting | Desktop or rack (with brackets) |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -20°C to 70°C |
| Dimensions | Approx. 17 × 10 × 3 cm |
| Weight | ~0.9 kg |
| Compliance | CE, FCC, RoHS |
| Application | Classrooms, signage, corporate AV, training |
| Warranty | Backed by Black Box warranty |

All packages are shipped same day if the order is placed before 3PM CST
We use UPS/FedEx to ship the packages with different service levels offered by UPS/FedEx
Overnight Shipping take 1 business day
Expedited Shipping take about 2-3 business days
Ground shipping take about 3-5 business days
You can select the desired service level at Checkout and we will make sure the package is shipped as per the selected service level.
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iv) Check
v) Bank Transfer/ACH/Wire Transfer
To process the order through Paypal/CC, you can simply checkout and process the payment.
If you want to issue us Purchase Order/Check/Bank Transfer, Please contact us at the following details
Call: 469.458.9636
Email: sales@dcsupplies.net
If you have any queries, please contact us at the following details and we will be happy to help
Call
469.458.9636
469.458.9638
Email
sales@dcsupplies.net