# Network Cable StarTech.com EX-QSFP-40GE-DAC-50CM QSFP+ QSFP+ 40GbE 0.5m

**URL:** https://aio.lv/en/product--startech-exqsfp4050cm--768255
**Data updated:** 2025-12-28 21:38 (EET)
**Category:** Network Cables
**Manufacturer:** StarTech
**Manufacturer code:** EXQSFP4050CM
**EAN:** 0065030875233
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 35.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 29.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-exqsfp4050cm--768255

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The StarTech.com EX-QSFP-40GE-DAC-50CM is a 0.5m 40G QSFP+ to QSFP+ Direct Attach Cable Twinax. It supports 40GbE with a low power passive transceiver module, ensuring efficient data transfer. The cable features male connectors on both ends, making it ideal for connecting compatible devices in high-speed networks.

## Long description

The StarTech.com EX-QSFP-40GE-DAC-50CM is a 0.5 m passive Twinax QSFP+ to QSFP+ direct-attach copper cable engineered for 40 Gigabit Ethernet connections. Compatible with Juniper®-style QSFP+ ports and designed to meet MSA industry standards, this low-power, low-latency cable provides a compact, hot-swappable solution for short-distance high-speed links between switches, routers and servers.
Advantages
This passive DAC cable delivers 40GbE performance with minimal power consumption and low latency, offering a cost-effective alternative to fiber for short-range connections. The cable is hot-swappable to minimize network downtime during upgrades or replacements. It is manufactured and tested to be compatible with Juniper®-compatible QSFP+ ports and is backed by StarTech.com lifetime warranty and free multilingual technical support.
Suitable for
In-rack point-to-point links between network switches
Server-to-switch high-speed connections
Short-distance interconnects in data centers and networking closets
Key specifications
Model: EX-QSFP-40GE-DAC-50CM (EXQSFP4050CM)
Data rate: 40 Gbps (40GbE)
Length: 0.5 m
Connector type: QSFP+ to QSFP+ (male on both ends)
Passive Twinax copper cable (low power)
Colour: Black
Weight: 0.1 kg
Compatibility: Juniper®-compatible QSFP+ ports; MSA-compliant
How to use
Insert each QSFP+ connector into the corresponding QSFP+ port on the devices to be linked (for example, switch-to-switch or switch-to-server). Ensure the ports are powered down or that hot-swap procedures recommended by your equipment vendor are followed if inserting into active ports. Verify link status in your device management interface to confirm the 40GbE connection is active. No additional transceiver modules or fiber patching are required.
Usage recommendations
Use this 0.5 m passive QSFP+ DAC for short-range, high-bandwidth connections inside racks or between adjacent racks. For longer distances or optical separation, choose an appropriate fiber-optic SFP/QSFP solution instead.

## Specifications

| Feature | Value |
|---|---|
| Data transfer rate | 40 Gbit/s |
| InfiniBand protocol | Yes |

### Features

| Feature | Value |
|---|---|
| Cable length | 0.5 m |
| Connector 1 | QSFP+ |
| Connector 2 | QSFP+ |
| Product colour | Black |
| Plug and Play | Yes |
| Data transfer rate | 40000 Mbit/s |
| Jacket material | Polyvinyl chloride (PVC) |
| Connector 1 gender | Male |
| Connector 2 gender | Male |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.1 kg |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 80 |
| Operating temperature (T-T) | 0 - 70 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 116 g |
| Package depth | 325 mm |
| Package height | 15 mm |
| Package width | 250 mm |

### Logistics data

| Feature | Value |
|---|---|
| Master (outer) case height | 295 mm |
| Master (outer) case width | 255 mm |
| Master (outer) case length | 344 mm |
| Products per master (outer) case | 10 pc(s) |
| Harmonized System (HS) code | 84733080 |

### Certificates

| Feature | Value |
|---|---|
| Certification | CE, FCC, REACH |
| Compliance certificates | RoHS |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Network Cable StarTech.com EX-QSFP-40GE-DAC-50CM cost, and is it available for purchase?

The price is 35.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 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 01.07.2026 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: Bank transfer. 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 Network Cable StarTech.com EX-QSFP-40GE-DAC-50CM?

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/768255/64085107_large.webp