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Black rectangular DP switch with DP input, DP and HDMI outputs

LUOM

LUOM TJ-A038 DisplayPort 1.4 to DP 1.4 + HDMI 2.1 Video Switch

SKU CH-90AG-4KTC8

Connects one DisplayPort 1.4 source to a DisplayPort 1.4 and HDMI 2.1 display simultaneously at up to 8K 30 Hz

  • Port count2
  • Adapter typeDisplayPort Switch/Extender
  • Input ports1 x DisplayPort 1.4
  • Output portsDisplayPort1.4+HDMI 2.1
  • Maximum supported resolutions8K@30 Hz 4K@120 Hz
  • Bandwidth ratingHigh Speed 32.4 Gbit/s
  • Drives two displays from one DP 1.4 port
  • 4 Gbps bandwidth carries 8K at 30 Hz
  • MST extends desktop across both screens
  • HDMI 2.1 output reaches 4K 120 Hz
  • USB power keeps the splitter running

Dual DisplayPort HDMI splitter for creators

The LUOM TJ-A038 splits one DisplayPort 1.4 source into simultaneous DisplayPort 1.4 and HDMI 2.1 outputs. It supports SST mirror and MST extended modes for dual-monitor workflows. Compatible with Windows, Android and iOS systems. Requires the included USB power cable for operation.

Upgrade from single-port adapters

Replaces basic single-output dongles when you need two active displays from one GPU port. In MST mode each output can reach 4K@60Hz together, or one port can hit 8K@30Hz or 4K@120Hz alone. The jump is worth it for signage, streaming or multi-tasking setups that demand simultaneous high-refresh 1440p or 4K signals.

Check GPU port and cable specs

Verify your graphics card provides a DisplayPort 1.4 output with MST support for extended desktop. Use certified DP 1.4 and HDMI 2.1 cables rated for 32.4 Gbps bandwidth. Note that 165 Hz and 144 Hz at 1440p are not supported on the HDMI port. Ensure a free USB port or charger for the required 5 V power line.

How it compares

Measured against everything we stock in HDMI & AV Selector Switches, at today’s prices. Recalculated every night.

Price $35.99
Pricier than about 68% of the 1,998 comparable items (median $27.99).

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Specifications

Product
Brand nameLUOM
Product lineTJ-A038
Model nameTJ-A038
Part numberTJ-A038
Product typeDisplayPort Switchers
Adapter typeDisplayPort Switch/Extender
Product colorBlack
Performance
Bandwidth ratingHigh Speed 32.4 Gbit/s
Display
Maximum supported resolutions8K@30 Hz 4K@120 Hz
Ports & slots
Port count2
Input ports1 x DisplayPort 1.4
Output portsDisplayPort1.4+HDMI 2.1
Size & build
Product dimensions12 × 6 × 0.08 in
Product weight1.2 oz
In the box
Units per package1
In the box1 X Directional DP to DP+HDMI Switcher
1 X DC 5 V power line
1 x instructions

Questions about this item

What size opening does the 12 x 6 x 0.08 inch switch need to fit in a rack or shelf?

The switch measures 12 inches long, 6 inches wide and 0.08 inches thick, so allow at least that footprint plus cable clearance.

Which step do people skip when installing the DP 1.4 to DP 1.4 + HDMI 2.1 switch?

Connect the included DC 5 V USB power cable before linking the DisplayPort source and the two displays; the unit will not pass signal without external power.

What will need replacement first on the LUOM TJ-A038 switch?

The USB power cable or the DisplayPort and HDMI cables will wear out before the switch itself, so keep spares for those.

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