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GTB-UHD2IRS-ELRPOL-BLK 4K Ultra HD ELR-POL Extender (Receiver/Sender) Kit with/RS-232 and 2-way IR by Gefen

GTB-UHD2IRS-ELRPOL-BLK 4K Ultra HD ELR-POL Extender (Receiver/Sender) Kit with/RS-232 and 2-way IR by Gefen

In stock (50 items available)
The GefenToolBox 4K Ultra HD ELR Extender for HDMI with POL uses Gefen's implementation of the HDBaseT technology to extend HDMI up to 495 feet (150 meters) using one CAT-5e cable. Resolutions up to 4K Ultra HD with 7.1 channels of HBR (High Bit ...
  • Brand
  • SKU
  • Weight
    3.00 lbs
  • Warranty
    2 Years
  • Condition
  • Status
    In Stock
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  • $399.20
Market price: $499.00, you save $99.80
  • 20% less

Extend HDMI, RS-232, and 2-way IR over one CAT-5e cable, up to 495 feet (150 meters)

The GefenToolBox 4K Ultra HD ELR Extender for HDMI with POL uses Gefen's implementation of the HDBaseT® technology to extend HDMI up to 495 feet (150 meters) using one CAT-5e cable. Resolutions up to 4K Ultra HD with 7.1 channels of HBR (High Bit Rate) lossless digital audio are supported. This product provides RS-232 and 2-way IR extension between the Sender and the Receiver units, allowing the transfer of IR commands and RS-232 communications between two remote locations. RS-232 and Bi-Directional IR can be used to control A/V sources placed near the Sender unit and to send automation commands to the display or any other device placed near the Receiver unit. Gefen POL (Power Over Line) technology powers the Receiver unit using the same cable that extends the HDMI signal from the Sender unit. This feature eliminates the need for an external power supply for the Receiver unit and simplifies installation.

How it Works

Connect the Sender unit to a Hi-Def source using the included HDMI cable. Use another HDMI cable to connect the Receiver unit to a display. Connect a single CAT-5e or better cable between the Sender and Receiver units. To control the source from the display location via IR, connect the included IR extender (Gefen part no. EXT-RMT-EXTIRN) to the IR Ext connector on the Receiver unit. Connect the included IR emitter (Gefen part no. GTB-IREMIT) to the IR Out port of the Sender unit and place the IR emitter over the IR sensor of the source. Point the IR remote at the IR extender to control the source. For IR control of a device placed near the Receiver unit (such as the display), connect the IR output from an automation control device to the IR In connector on the Sender unit. Connect an IR emitter (Gefen part no. EXT-IREMIT) to the IR Out port on the Receiver unit and attach the IR emitter to the IR sensor of the device being controlled. To extend RS-232 between the local and remote locations, connect the included male-to-female DB-9 cable from the Sender to an automation control device, and connect another DB-9 cable of the same type from the Receiver unit to the device to be controlled. Connect the included 24V DC power supply to the Sender unit and plug it into an available electrical outlet. Power to the Receiver unit is delivered from the Sender unit over the CAT-5e cable using Gefen POL technology. Power on all associated equipment.

Note: Shielded (STP) CAT-5e or CAT-6 is recommended. Unshielded (UTP) CAT-5e or CAT-6 may be acceptable depending on cable quality but is not the best choice. Care should always be given to keep these cables away from power lines and other sources of electromagnetic interference.


  • Extends 4K Ultra HD (3840 x 2160 @ 30 Hz, 8-bit color**), RS-232, and Bi-Directional IR, up to 230 feet/70 meters over a single CAT-5e cable, or up to 330 feet/100 meters over a single CAT-6A cable
  • Extends HDMI at 1080p Full HD, RS-232, and Bi-Directional IR, over a single CAT-5e cable up to 495 feet/150 meters (8-bit color**) or up to 330 feet/100 meters (up to 12-bit Deep Color)
  • HDMI Features Supported:
    • HDCP
    • 12-bit Deep Color
    • LPCM 7.1 audio, Dolby® TrueHD, and DTS-HD Master Audio™ pass-through 3DTV pass-through
    • CEC pass-through
    • Lip Sync pass-through
  • RS-232 Extension
  • 2-way IR extension from Sender to Receiver and from Receiver to Sender
  • Gefen POL feature provides power to the Receiver unit over the link cable
  • Uses Gefen's implementation of HDBaseT® technology
  • EDID pass-through
  • Locking power connector
  • Surface mountable
  • Maximum Pixel Clock: 300 MHz
  • Maximum TMDS Clock: 300 MHz
  • Video Input Connector (Sender): (1) HDMI Type A 19-pin, female, locking
  • Video Output Connector (Receiver): (1) HDMI Type A 19-pin, female, locking
  • Link Connector (Sender/Receiver): (1) RJ-45, shielded
  • RS-232 port (Sender): (1) DB-9, female
  • RS-232 port (Receiver): (1) DB-9, male
  • IR Extender port (Receiver): (1) 3.5mm mini-stereo jack
  • IR Extender type: EXT-RMT-EXTIRN
  • IR Out port (Sender/Receiver): (1) 3.5mm mini-mono jack
  • IR In port (Sender): (1) 3.5mm mini-mono jack
  • Power/HDCP Indicator LED (Sender/Receiver): (1) Bi-color: Blue/Amber
  • Power Supply: (1) 24V DC, locking
  • Power Consumption: 10W maximum
  • Operating Temperature: 0 to +50 °C
  • Operating Humidity: +10 to +90%, Relative Humidity, non-condensing
  • Storage Temperature: -20 to +85 °C
  • Storage Humidity: 0 to +95%, Relative Humidity, non-condensing
  • MTBF: 50000 hours
  • Dimensions (W x H x D) (Sender / Receiver): 4.3" x 1" x 3.2" (110mm x 26mm x 80mm)
  • Unit Weight (Sender/Receiver): 0.35 lbs. (0.2 kg)
  • Shipping Weight: 2.6 lbs. (1.2 kg)
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.


Major Credit Cards: Visa, MasterCard, Discover and American Express.
Paypal: You can select an option of Paying with Paypal in our shopping cart.
Money orders: and personal checks or company checks (may take up to 10 days to clear).
Wire Transfer: ( Bank Transfer ) Only for the amount over $500. Contact us for the bank details.
Phone Orders: To place a phone order please call 1.888.902.3309 or 1.916.246.6264 and one of our Customer Service Representatives will take your order (8:00am - 6.00pm PST).

Purchase order: Fax purchase orders to 1.916.672.2557

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 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.

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

  • Shipping Info
    We offer free ground shipping on every purchase of $300 and more for US and US territory. We deliver worldwide.
  • Payment Methods

  • Return Policy
    We Offer a 30-Day Money Back Guarantee