# Lightwin QSFP28 DAC cable 100 Gbit LWO-DAC-QSFP28-1M-HPE — QSFP28 to QSFP28, 1 m

**URL:** https://aio.lv/en/product--lightwin-lwo-dac-qsfp28-1m-hpe--12270826
**Data updated:** 2026-04-16 16:29 (EEST)
**Category:** Network Cables
**Manufacturer:** Lightwin
**Manufacturer code:** LWO-DAC-QSFP28-1M-HPE
**EAN:** 9120138892740
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Direct Attach Cable (DAC) Lightwin LWO-DAC-QSFP28-1M-HPE is a 1 m passive QSFP28 to QSFP28 copper link supporting 100 Gbit/s connections. Designed for short-reach data center links and switch-to-switch or server-to-switch interconnects, it offers plug-and-play compatibility with HP Aruba SFP/XFP equipment and low-latency wired connectivity.

## Long description

Lightwin QSFP28 DAC cable 100 Gbit LWO-DAC-QSFP28-1M-HPE is a 1 m passive direct attach copper cable with QSFP28 plugs at both ends. It provides a 100 Gbit/s wired connection for short-reach links in data centers, server racks, and switch interconnects. The cable is designed for plug-and-play use with HP/Aruba SFP/XFP equipment and offers a low-latency, low-power option for high-density 100G connections.
Advantages
The passive QSFP28 DAC design delivers high throughput and low latency without the need for optical transceivers, keeping power consumption and heat generation low. At 1 m length and with QSFP28-to-QSFP28 connectors, the cable supports direct switch-to-switch or server-to-switch links in top-of-rack and midplane deployments. Black outer jacket and compact form factor simplify cable management in dense rack environments while maintaining reliable electrical performance for short distances.
Suitable for
 Short-distance 100 Gbit/s links between switches in the same rack or adjacent racks
 Server-to-switch 100G interconnects in data center racks
 High-density aggregation and spine-leaf topologies requiring low-latency copper connections
When it may not be suitable
This passive DAC is intended for short-reach connections; it is not suitable for long-distance links or runs between remote racks where optical fiber is required. It also does not replace optical transceivers where extended reach, optical isolation, or fiber-based infrastructure is mandated.
Key specifications
 Cable type: Direct Attach Copper (DAC)
 Length: 1 m
 Connector type: QSFP28 to QSFP28 (male)
 Data rate: 100 Gbit/s
 Colour: Black
 Form factor: Passive twinax copper assembly
How to use
Ensure both devices support QSFP28 100G direct-attach connections and are powered down if manufacturer guidelines recommend it for hot-plugging. Align the QSFP28 connector keyed position with the port, insert until the latch clicks, then repeat on the opposite end. Verify link status on connected switches or network interface cards; check for negotiated 100 Gbit/s rate. To remove, press the connector latch and withdraw straight out to avoid damaging ports.
What to consider before purchase
 Confirm your switches or NICs support QSFP28 passive DACs and are compatible with vendor interoperability lists
 Verify 1 m length fits rack layout and maintains proper cable management clearance
 Consider whether passive copper reach and electrical characteristics meet your latency and power requirements
Usage recommendations
Use the Lightwin QSFP28 DAC cable for short intra-rack or adjacent-rack 100G links where low latency and low power are priorities. Avoid sharp bends and excessive tension; follow vendor guidance for port insertion/removal and cable routing to preserve connector integrity and signal performance.

## Specifications

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

### Features

| Feature | Value |
|---|---|
| Cable length | 1 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

### 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/12270826/68193073_large.webp