# Direct Attach Cable Lightwin QSFP28 to QSFP28 100 Gbit LWO-DAC-QSFP28-0.5M-HPE (0.5 m)

**URL:** https://aio.lv/en/product--lightwin-lwo-dac-qsfp28-05m-hpe--12270832
**Data updated:** 2026-04-16 16:29 (EEST)
**Category:** Network Cables
**Manufacturer:** Lightwin
**Manufacturer code:** LWO-DAC-QSFP28-0.5M-HPE
**EAN:** 9120138892733
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 74.49 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 61.56 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lightwin-lwo-dac-qsfp28-05m-hpe--12270832

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.08.2026 | free |
| Pickup points | 12.08.2026 | 1.89 EUR |
| Courier delivery to door | 12.08.2026 | 4.99 EUR |

## Summary description

Passive Direct Attach Cable (DAC) Lightwin QSFP28 to QSFP28 providing 100 Gbit/s connectivity over a 0.5 m copper link. Compatible with HP Aruba QSFP28 ports and designed for short-reach interconnects between switches, routers or servers. Delivers low-latency, energy-efficient direct links for data center top-of-rack and aggregation use.

## Long description

Direct Attach Cable Lightwin QSFP28 to QSFP28 100 Gbit LWO-DAC-QSFP28-0.5M-HPE is a passive copper direct attach cable that provides 100 Gbit/s connectivity over a short 0.5 m link. The cable features QSFP28 male connectors on both ends and a compact, black jacket suitable for densely packed rack environments. Designed for short-reach interconnects, this DAC delivers low latency and low power consumption for top-of-rack and aggregation links in data centers and server rooms.
Advantages
This direct attach cable offers a straightforward, cost-effective way to connect QSFP28 ports at 100 Gbit/s without transceivers. The passive copper design minimizes power draw compared with active optical solutions and keeps latency low for high-performance switching and server interconnects. Its 0.5 m length reduces cable clutter in rack cabinets and helps maintain signal integrity for very short distances.
Suitable for
Short-reach connections between switches within the same rack or adjacent racks
Aggregation links in data center top-of-rack deployments
Direct server-to-switch or server-to-server high-bandwidth links
When it may not be suitable
This passive DAC is intended for very short-distance interconnects and is not suitable for longer runs between distant racks or across rooms. It does not include active transceiver electronics or optical fiber, so it cannot replace fiber-based QSFP28 transceivers for extended reach or campus-wide links.
Key specifications
Connector type: QSFP28 male to QSFP28 male
Nominal bandwidth: 100 Gbit/s
Cable type: Passive direct attach copper (DAC)
Length: 0.5 m
Colour: Black
How to use
Install the cable by inserting each QSFP28 connector into compatible QSFP28 ports on switches, routers or servers until the connector latch engages. Ensure both devices support passive DAC interconnects and that port settings match the intended 100 Gbit/s link speed. Route the 0.5 m cable to avoid sharp bends and to maintain clearance in dense rack setups. No additional configuration is required beyond standard network port setup and link verification.
What to consider before purchase
Verify that your network devices explicitly support passive QSFP28 DAC cables
Confirm that a 0.5 m cable length is appropriate for your rack layout and cable management
Ensure your equipment requires a copper DAC rather than an optical transceiver for the intended links
Usage recommendations
For reliable performance, use this 0.5 m DAC for intra-rack or adjacent-rack connections where low latency and low power are priorities. Avoid routing the cable near strong electromagnetic interference sources and do not bend the cable beyond manufacturer-recommended radii. Verify link status after installation and monitor port temperatures when densely populating QSFP28 slots.

## Specifications

| Feature | Value |
|---|---|
| Data transfer rate | 100 Gbit/s |

### Features

| Feature | Value |
|---|---|
| Cable length | 0.5 m |
| Cable type | DAC |
| Connector 1 | QSFP28 |
| Connector 2 | QSFP28 |
| Product colour | Black |
| AWG wire size | 26/30 |
| Ethernet interface type | 100 Gigabit Ethernet |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Cable shape | Round |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 70 |

### Packaging content

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

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

## FAQ

### How much does the Lightwin QSFP28–QSFP28 100 Gbit DAC 0.5 m cost, and is it available for purchase?

The price is 74.49 € (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 07.08.2026 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 Lightwin 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 Lightwin 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, cable type, connector 1, connector 2, 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.

## Image

https://aio.lv/img/cache/product/12270832/68193051_large.webp