Description
The 12GM is an SDI transport mini-converter designed to convert between single-link 12G/6G/3G/1.5G SDI and quad/dual link SDI formats. It enables bidirectional conversion between single 12G-SDI and quad-link 3G-SDI, supporting 4K, UltraHD, 2K, HD, and SD workflows. The unit maps pixel formats between Two Sample Interleave (2SI) and Square Division (Quadrant) and supports Dual-Link/Dual-Stream modes.
Key capabilities include quad-link 3G Level A/B Dual-Link conversion, Dual Stream support, simple frame rate conversion between fractional and integer rates, and HDR VPID pass-through or override for colorimetry and transfer characteristic. The converter also passes embedded SDI audio including AC-3 and E-AC-3 and supports up to 16 channels of 24-bit audio. It can be configured as a 1×4 distribution amplifier for duplicating single-link or dual-link outputs.
Performance and format coverage are comprehensive – the 12GM supports 4096×2160 and 3840×2160 at multiple frame rates including 23.98 through 60, 2K and HD progressive and interlaced modes, and supports YCbCr 4:2:2, 4:4:4 RGB and 10/12-bit depths where applicable. Cable equalization distances are specified for common Belden 1694A coax runs and the unit provides input signal diagnostics and a timing analyzer for quad/dual link validation. Convection cooling and an included universal power supply are provided for portable or rack accessory deployments.
Connectivity includes multiple SDI configurations: four 12G-SDI inputs/outputs, 3G and 1.5G quad/dual arrangements, dual 6G, dual 3G dual-stream, and single link outputs at 12G/6G/3G/1.5G/270M. Configuration and diagnostics are accessed through a USB port using AJA Mini-Config on macOS or Windows. The 12GM also supports duplication of outputs when used as a distribution amplifier and preserves SDI metadata and HDR signaling.
Typical applications include live production, OB trucks, post production, playout centers, and broadcast facilities that need format translation between 12G single-link and quad/dual 3G or 1.5G infrastructures. The 12GM simplifies migration to higher bandwidth single-link SDI while retaining compatibility with existing quad-link cabling and equipment. It is well suited to routing 4K/UltraHD signals across mixed SDI infrastructures and validating quad-link timing alignment.
Installation is straightforward with a compact metal enclosure sized for racks or mobile kits and simple USB configuration via the supplied cable and Mini-Config software. The unit uses approximately 12 watts and relies on convection cooling so adequate airflow is recommended. A five year warranty and AJA support complete the product offering for professional AV and broadcast deployments.
Free Ground Shipping
We offer free ground shipping on every purchase of $300 and more for US and US territory. Please choose "Free Ground Shipping (UPS/USPS)" option at checkout.
UPS Ground
UPS provides up-to-date tracking information. Ground service takes anywhere from 2-7 working days for delivery depending on destinations. UPS Ground does not deliver on Saturdays, Sundays or Holidays.
USPS Priority Mail/USPS Express Mail
For all shipments shipped via USPS, we offer 'DELIVERY CONFIRMATION' number with each package. Difference between tracking number provided by UPS vs USPS Delivery Confirmation number is: Delivery Confirmation status is updated when the delivery has been made or when the package has made it through major USPS stations.
Air Shipment
Air shipments, Overnight, 2nd day and 3 day select methods offer guaranteed delivery time for your shipment. If you are in hurry or in need for the items on schedule, select one of these methods. Up-to-date tracking information is provided with each Air Shipment. AVProSupply has the right to choose between Air shipments to meet or reduce delivery time. For guaranteed delivery of multiple items with expedited shipping, please contact our customer service representative for personalized assistance to get your items delivered to you when you need them.
International Customers
We offer shipping via USPS/UPS for our international customers. You can find different shipping options during checkout.
Most items ordered from AVProSupply will be shipped out from our California Warehouse. Will-Calls are only allowed with Appointment Only - Please call Customer Service to set one up between the hours of 9am to 6pm PST.
We Offer A 30-Day Money Back Guarantee:
Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.
Refunds:
Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.
Exchanges:
If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.
No Returns/Exchanges on the following:
- TVs and monitors 20" and larger
- Special Order merchandise
- Any item indicated on the website as non-returnable
For more information see our official Return Policy
