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header-product Network Cable StarTech.com EX-QSFP-40GE-DAC-50CM QSFP+ QSFP+ 40GbE 0.5m
36.49 €

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

Network Cable StarTech.com EX-QSFP-40GE-DAC-50CM Photo 1
Network Cable StarTech.com EX-QSFP-40GE-DAC-50CM Photo 2
Network Cable StarTech.com EX-QSFP-40GE-DAC-50CM Photo 1
Network Cable StarTech.com EX-QSFP-40GE-DAC-50CM Photo 2
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Network Cable StarTech.com EX-QSFP-40GE-DAC-50CM QSFP+ QSFP+ 40GbE 0.5m

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

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Short 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.
Available at price 36.49 €: 2 pcs.
Total available for order: 4 pcs.
Warranty: 2 Years
SKU: 768255
Manufacturer: StarTech
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
10.08.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
13.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.04 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
13.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.79 €
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Payment Methods:
Bank transfer
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Product information

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

Connector 1 gender: The gender of the first connector of the product. Each half of a pair of mating connectors is assigned the designation male or female, the part bearing one or which fits into another being called male.
Male
Connector 2 gender: The gender of the second connector of the product. Each half of a pair of mating connectors is assigned the designation male or female, the indented one or the one fitting around the other being called female.
Male
Connector 2: This is the second connector in the device.
QSFP+
Connector 1: This is the first connector in the device.
QSFP+
Cable length: How long the cable is.
0.5 m
All features
Data transfer rate: Rate at which data can be transferred. Usually expressed in units per second. May vary with network configurations.
40 Gbit/s
InfiniBand protocol:
Yes

Logistics data

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

Packaging data

Package weight: Weight of the packaged product.
116 g
Package height: The distance from the top to the bottom of the packaging.
15 mm
Package depth: The distance from the front to the back of the packaging.
325 mm
Package width: The distance from one side of the packaging to the other.
250 mm

Packaging content

Quantity per pack:
1 pc(s)

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.1 kg

Certificates

Certification:
CE, FCC, REACH
Compliance certificates: Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.
RoHS

Operational conditions

Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.
-40 - 80
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 70

Features

Plug and Play: Indicates whether this product supports is "plug and play". Plug and play is hardware or software that, after being installed ("plugged in"), can immediately be used ("played with"), as opposed to hardware or software which requires configuration.
Yes
Data transfer rate: Rate at which data can be transferred, usually measured in units per second. May vary with network configurations.
40000 Mbit/s
Jacket material:
Polyvinyl chloride (PVC)
Connector 1 gender: The gender of the first connector of the product. Each half of a pair of mating connectors is assigned the designation male or female, the part bearing one or which fits into another being called male.
Male
Connector 2 gender: The gender of the second connector of the product. Each half of a pair of mating connectors is assigned the designation male or female, the indented one or the one fitting around the other being called female.
Male
Connector 2: This is the second connector in the device.
QSFP+
Connector 1: This is the first connector in the device.
QSFP+
Product colour: The colour e.g. red, blue, green, black, white.
Black
Cable length: How long the cable is.
0.5 m

Description

Machine translation. Load original

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Stock data
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
EU9 2 10.08.2026 Best delivery
36.49 € Best price
WH109 2 24.08.2026
40.99 €
Available only for legal entities
36.49 €
Stock: 2
Delivery Date: 10.08.2026 Best delivery
Warehouse: EU9
40.99 €
Stock: 2
Delivery Date: 24.08.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

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

The price is 36.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 10.08.2026 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connector 1 gender, connector 2 gender, connector 2, connector 1, cable length, 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.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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