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Small black rectangular adapter with one DisplayPort input and two output ports HDMI and DisplayPort

ESTONE

ESTONE TJ-A038 DisplayPort 1.4 to HDMI 2.1 + DP Switch 8K@30Hz 4K@120Hz

SKU CH-00WG-1BZKB

A DisplayPort 1.4 switch sends one source to HDMI 2.1 and DisplayPort outputs simultaneously at up to 8K 30 Hz or 4K 120 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
  • Connect two monitors simultaneously without switching
  • 8K resolution at 30 Hz for ultra-sharp visuals
  • 4K gaming at 120 Hz with smooth motion
  • 1440p high-refresh rates up to 165 Hz for competitive play
  • 4 Gbps bandwidth carries full DisplayPort 1.4 signals

One input to two displays

The ESTONE TJ-A038 splits a single DisplayPort 1.4 source into simultaneous DisplayPort and HDMI 2.1 outputs. It supports MST extended desktop and SST mirror modes across both screens. Maximum resolutions reach 8K at 30 Hz and 4K at 120 Hz. The adapter suits professionals who need dual-monitor productivity from one port.

Requires external power and DP 1.4 source

A USB DC 5 V power lead is included and must be connected for operation. The host must provide a DisplayPort 1.4 output with MST capability to drive two independent displays. Bandwidth is rated at 32.4 Gbps. HDMI output does not support 1440p at 165 Hz or 144 Hz.

Includes power cable and manual

The package supplies a USB power cable and an instruction sheet. No additional software or drivers are required. The hardware handles 4:4:4, 4:2:2 and 4:2:0 chroma sampling and HDR pass-through automatically. Compatibility spans Windows, Android and Apple operating systems.

How it compares

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

Price $39.99
Pricier than about 75% of the 1,998 comparable items (median $27.99).

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Specifications

Product
Brand nameESTONE
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 is the maximum bandwidth the ESTONE TJ-A038 can sustain across both outputs?

The ESTONE TJ-A038 provides a high-speed bandwidth of 32.4Gbps over its DisplayPort 1.4 input, shared between the DP 1.4 and HDMI 2.1 outputs.

Does the ESTONE TJ-A038 need active cooling or generate noticeable heat during all-day operation?

The unit is passively cooled with no fan; it draws power from the included DC 5V USB cable and remains cool under continuous use.

Which cable and source port must I already have to run dual 4K@120Hz displays on this switch?

You need a DisplayPort 1.4 source port and a certified DP 1.4 cable for the input, plus one HDMI 2.1 cable and one DP 1.4 cable for the two outputs.

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