# Direct Attach Copper Cable BlueOptics UACC-DAC-QSFP28-50CM 100GBASE-CR4 QSFP28 0.5 m 30AWG Infiniband EDR compatible

**URL:** https://aio.lv/en/product--blueoptics-uacc-dac-qsfp28-50cm-bl--12263878
**Data updated:** 2026-04-14 22:34 (EEST)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** UACC-DAC-QSFP28-50CM-BL
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 105.49 €
**Prices and availability valid until:** 2026-08-17 23:59
**Price without VAT (21%):** 87.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-uacc-dac-qsfp28-50cm-bl--12263878

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.08.2026 | free |
| Pickup points | 20.08.2026 | 1.79 EUR |
| Courier delivery to door | 20.08.2026 | 4.99 EUR |

## Summary description

Copper direct attach cable BlueOptics UACC-DAC-QSFP28-50CM provides 100G connectivity using QSFP28 interfaces and supports 100GBASE-CR4 electrical signaling. At 0.5 m and 30AWG construction it is suited for short-reach interconnects in data centers, switches and servers and is compatible with Infiniband EDR environments and Ubiquiti-compatible ports.

## Long description

The BlueOptics Direct Attach Copper Cable UACC-DAC-QSFP28-50CM is a 0.5 m passive copper interconnect that delivers 100G connectivity over QSFP28 interfaces using 100GBASE-CR4 electrical signalling. Built with 30 AWG conductors and end-to-end QSFP28 plugs, this short-reach cable is designed for top-of-rack and adjacent-rack links between switches, network interface cards, and servers. It is compatible with Infiniband EDR environments and fits ports commonly used in data center equipment, including many Ubiquiti-compatible QSFP28 ports.
Advantages
This copper direct attach cable provides a compact, low-latency and cost-effective option for short-distance 100G interconnects without the need for optical transceivers. The 0.5 m length reduces clutter and signal loss in dense rack environments, while the 30 AWG construction keeps the cable flexible for routing in tight spaces. QSFP28-to-QSFP28 connectivity ensures straightforward plug-and-play installation between compatible devices and supports 100GBASE-CR4 electrical signalling used in many high-speed networks.
Suitable for
Short-reach links between switches and top-of-rack servers in data centers
Direct connections between network interface cards (NICs) and switches
Infiniband EDR-compatible environments requiring copper QSFP28 interconnects
Environments using Ubiquiti-compatible QSFP28 ports for 100G links
When it may not be suitable
This passive copper cable is intended for short-reach connections; it is not suitable for long-distance links where optical transceivers or fiber cabling are required. It also depends on endpoint compatibility — devices must support QSFP28 passive copper connections and 100GBASE-CR4 signalling. For environments that require lower electromagnetic interference susceptibility or longer reach, fiber solutions are a better choice.
Key specifications
Connector type: QSFP28 to QSFP28
Rated speed: 100 Gbit/s using 100GBASE-CR4 electrical signalling
Cable length: 0.5 m
Conductor gauge: 30 AWG
Form factor: Passive direct attach copper
Compatibility: Infiniband EDR-compatible and commonly used QSFP28 ports (including Ubiquiti-compatible ports)
How to use
Ensure both devices support QSFP28 passive copper connections and 100GBASE-CR4 signalling. With devices powered and available, insert each QSFP28 connector into the corresponding port until the latch engages. Avoid sharp bends and excessive pulling; route the 0.5 m cable to minimize stress on connectors. After connection, verify link status on both endpoints and check that the interfaces negotiate 100G operation. For removal, press the connector latch and pull straight out to avoid damaging the port.
What to consider before purchase
Confirm both endpoints support QSFP28 passive copper and 100GBASE-CR4 signalling
Verify the 0.5 m length and 30 AWG construction meet your routing and mechanical requirements
Check compatibility with your switch or server vendor and any vendor-specific port restrictions
Usage recommendations
Use this BlueOptics QSFP28 direct attach copper cable for short, high-speed rack-level connections where low latency and straightforward installation are priorities. Keep the cable run short and free of tight bends, and confirm link settings after installation to ensure stable 100G operation.

## FAQ

### How much does the BlueOptics UACC-DAC-QSFP28-50CM QSFP28 100G DAC cost, and is it available for purchase?

The price is 105.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 224 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 17.08.2026 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 BlueOptics 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 BlueOptics 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