# DisplayPort Cable StarTech.com DP21-3M-DP40 3m 8K 60Hz 4K 144Hz 40Gbps

**URL:** https://aio.lv/en/product--startech-dp21-3m-dp40-cable--11416043
**Data updated:** 2025-12-07 14:38 (EET)
**Category:** Monitor & Display Cables
**Manufacturer:** StarTech
**Manufacturer code:** DP21-3M-DP40-CABLE
**EAN:** 065030920568
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 39.99 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 33.05 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-dp21-3m-dp40-cable--11416043

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

The StarTech.com 3m DisplayPort 2.1 Cable supports 8K at 60Hz and 4K at 144Hz with a bandwidth of 40Gbps. It is VESA certified and features UHBR10, HDR, and HDCP 2.2 compatibility, making it ideal for high-resolution displays. The cable is designed for reliable performance and is suitable for connecting UHD monitors. It has a diameter of 8.2 mm and weighs 275 g, ensuring durability and ease of use.

## Long description

Connect an 8K or 4K UHD DisplayPort monitor to a host computer or MST hub with this VESA-Certified DisplayPort 2.1 DP40 cable. It enables high-bandwidth video and multi-channel audio for 8K workstations, high-performance GPUs, and AV applications such as media production and content creation.
Advantages
The DisplayPort 2.1 DP40 cable is VESA Certified for DP 2.1 and backward compatible with DP 2.0/1.4/1.2. It supports Variable Refresh Rate technologies including G-Sync and FreeSync, improving synchronization between supported GPUs and displays. The cable’s TPE outer jacket is designed for flexibility and is tested for 600 bending cycles at ±60 degrees. Latching nickel-plated connectors provide secure attachment and are rated for more than 10,000 insertions. Braided aluminum mylar shielding reduces EMI for stable audio/video transmission.
Key specifications
Standard: DisplayPort 2.1 (VESA Certified)
Max resolution: Up to 8K 60Hz with DSC (using compatible DP source and display)
UHBR support: UHBR10 enabling 4K 120Hz and 1440p 240Hz
Compression: Display Stream Compression (DSC) 1.2a
HDR: HDR10 support
Content protection: HDCP 2.2
Audio: Up to 32 uncompressed digital audio channels
MST: Multi-Stream Transport for daisy-chaining monitors
Backward compatibility: DP 2.0 / 1.4 / 1.2
Connector durability: Rated beyond 10,000 insertions
Cable jacket: Flexible TPE, tested for 600 bending cycles at ±60°
Shielding: Braided aluminum mylar to minimize EMI
How to use
Plug the latching DisplayPort connector into the DP output of your host computer, GPU, or MST hub and attach the other end to the DisplayPort input on your monitor. Ensure both source and display support DP 2.1 features such as UHBR10 and DSC if you require 8K 60Hz or high refresh rate modes. Secure the latches to prevent accidental disconnection and route the cable using its flexible TPE jacket to avoid sharp bends. For multi-monitor setups, enable MST on the host or hub and chain displays according to the monitor and GPU instructions.
Recommendations
Use with DP 2.1-enabled hosts and displays for full 8K/60Hz and UHBR10 performance; verify source and display compatibility for DSC, HDR10 and HDCP 2.2. Keep cable bends gentle and avoid pinching to preserve shielding and connector life.

## Specifications

### Features

| Feature | Value |
|---|---|
| Cable length | 3 m |
| Connector 1 | DisplayPort |
| Connector 2 | DisplayPort |
| Product colour | Black |
| Data transfer rate | 40 Gbit/s |
| Maximum resolution | 7680 x 4320 |
| Supported graphics resolutions | 7680 x 4320, 3840 x 2160, 2560 x 1440 |
| HDCP | Yes |
| Connector contacts plating | Nickel |
| Maximum refresh rate | 240 Hz |
| Connector 1 form factor | Straight |
| Connector 2 form factor | Straight |
| Jacket material | Thermoplastic Elastomer (TPE) |
| AWG wire size | 30 |
| Cable material | Copper |
| Cable shielding | Aluminum mylar foil |
| DisplayPort version | 2.1 |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Latching connectors | Yes |
| Cable type | Round cable |
| Channels quantity | 32 channels |
| HDCP version | 2.2 |
| High Dynamic Range (HDR) supported | Yes |
| Fire-resistance rating | VW-1 |
| Multi-Stream Transport (MST) | Yes |
| Display Stream Compression (DSC) | Yes |
| Display Stream Compression (DSC) version | 1.2a |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.275 kg |
| Cable diameter | 8.2 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 10 - 85 |
| Storage temperature (T-T) | -20 - 70 |
| Operating temperature (T-T) | 0 - 45 |

### Logistics data

| Feature | Value |
|---|---|
| Master (outer) case height | 210 mm |
| Master (outer) case width | 500 mm |
| Master (outer) case length | 320 mm |
| Products per master (outer) case | 30 pc(s) |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 287 g |
| Package depth | 200 mm |
| Package height | 41 mm |
| Package width | 220 mm |

## FAQ

### How much does the DisplayPort Cable StarTech.com DP21-3M-DP40 cost, and is it available for purchase?

The price is 39.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 84 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 26.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All StarTech products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized StarTech service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: cable length, connector 1, connector 2, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for DisplayPort Cable StarTech.com DP21-3M-DP40?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11416043/66185228_large.webp