StarTech.com HDMI to DisplayPort Active Adapter — 4K 60 Hz, USB Powered
HDMI → DP 1.24K60 · HDRUSB powered30 cm
The StarTech.com 128-HDMI-DISPLAYPORT is an active adapter cable that connects an HDMI output — laptop, desktop, Ultrabook, MacBook or Chromebook — to a DisplayPort monitor or projector at up to 3840 × 2160 at 60 Hz with HDR. The part number 128-HDMI-DISPLAYPORT covers a 30 cm cable with a DisplayPort 1.2 female socket at the end, so your existing DP cable plugs straight in.
An LT6711A converter chip handles the signal conversion and takes its power from a USB-A port or USB charger via a 30 cm power lead. It supports HDCP 2.2, 2-channel audio and ultrawide 3440 × 1440 at 60 Hz, and works with Windows, macOS, Ubuntu and ChromeOS without drivers.
Compatibility note: Conversion is one way only — HDMI source to DisplayPort display. It will not connect a DisplayPort output to an HDMI screen. The USB power lead must be connected for the adapter to work.
Technical Specifications
| Identification |
| Part Number |
128-HDMI-DISPLAYPORT |
| EAN / GTIN |
0065030897143 |
| MPN |
128-HDMI-DISPLAYPORT |
| Brand |
StarTech.com |
| Connection |
| Input |
HDMI Type A male (19-pin) |
| Output |
DisplayPort 1.2 female (20-pin) |
| Power |
USB Type-A male, power only — USB port or USB wall charger |
| Direction |
HDMI → DisplayPort, not bidirectional |
| Video & Audio |
| Max resolution |
3840 × 2160 @ 60 Hz, with HDR |
| Ultrawide |
3440 × 1440 @ 60 Hz |
| Other modes |
3840 × 2160 @ 30 Hz · 1080p |
| Audio |
2-channel audio over DisplayPort |
| Copy protection |
HDCP 2.2 |
| Chipset |
LT6711A |
| Physical & Warranty |
| Cable length |
30 cm (USB power lead 30 cm) |
| Colour |
Grey, black |
| Weight |
38 g |
| OS support |
Windows · macOS · Ubuntu · ChromeOS — plug and play |
| Warranty |
3-year limited warranty (StarTech.com) |
Frequently Asked Questions
Can I connect my HDMI laptop to a DisplayPort-only monitor with the 128-HDMI-DISPLAYPORT?
Yes, that is its purpose. Plug the HDMI end into the laptop, the USB lead into a USB port or charger, and your DisplayPort cable from the monitor into the DP socket. 4K at 60 Hz with HDR works if the laptop outputs it.
Will a passive HDMI-to-DP cable do the same job?
No. HDMI and DisplayPort use different signalling, so HDMI to DisplayPort always needs an active converter like this one. Passive adapters only work in the other direction (DP++ source to HDMI display).
Singular Expert Insight
The 128-HDMI-DISPLAYPORT is the right tool when a DisplayPort monitor has to be driven from an HDMI-only laptop, console or PC — 4K60 with HDR covers modern displays, and the female DP socket lets you use any length of DP cable. For 8K or high-refresh DSC modes, StarTech.com's 148B-HDMI-DP-8K is the step up.
✓ Buy it if you need to drive a DisplayPort monitor or projector from an HDMI output at up to 4K60 with HDR.
✕ Skip it if you need to go the other way — DisplayPort output to an HDMI display needs a DP-to-HDMI adapter.
→ Also consider StarTech.com 148B-HDMI-DP-8K (HDMI 2.1 → DP 1.4, 8K60).