# DAC Cable CBO QSFP28 to QSFP28 2 m (CAB-Q28-Q28-2M-BL) Direct Attach Copper

**URL:** https://aio.lv/en/product--blueoptics-cab-q28-q28-2m-bl--4470523
**Data updated:** 2026-02-25 16:34 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** CAB-Q28-Q28-2M-BL
**EAN:** 4063232101354
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 110.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 91.73 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-cab-q28-q28-2m-bl--4470523

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

CBO DAC Cable QSFP28 to QSFP28, model CAB-Q28-Q28-2M-BL, is a 2-meter direct attach copper link for high-speed network equipment. Designed for short-reach connections between QSFP28 ports, it provides a compact, low-latency physical connection without separate transceivers. Suitable for switches, routers and servers where a 2 m QSFP28 copper connection is required.

## Long description

BlueOptics DAC Cable QSFP28 to QSFP28 2 m (CAB-Q28-Q28-2M-BL) is a 2‑meter direct attach copper link designed for short‑reach, high‑speed interconnections between devices with QSFP28 ports. The cable provides a low‑latency, low‑power physical connection without the need for separate optical transceivers, simplifying rack cabling for switches, routers and servers that support QSFP28 interfaces.
Advantages
The direct attach copper design delivers deterministic latency and reduced power consumption compared with optical modules and active optics for equivalent short distances. Its fixed 2 m length ensures consistent signal integrity for short‑reach data center links while reducing component count and installation complexity. The QSFP28 to QSFP28 connector pair supports 100 Gigabit Ethernet and compatible high‑speed protocols, enabling straightforward, space‑efficient connections in top‑of‑rack and aggregation layers.
Suitable for
 Short‑reach connections between QSFP28 ports in racks and cabinets
 Interconnects between 100 Gigabit Ethernet switches and routers
 Direct server-to-switch links for high‑performance compute nodes
 Patch and spine links in data center topologies where 2 m copper is appropriate
Key specifications
 Cable type: Direct attach copper (DAC)
 Connector types: QSFP28 to QSFP28
 Length: 2 m
 Supported data rate: up to 100 Gbps per port (QSFP28 compatible)
 Typical use: short‑reach, passive copper interconnect
 Form factor: fixed‑length twinax with integrated connectors
How to use
Insert each QSFP28 connector into the corresponding QSFP28 port on your network devices until the latch engages. Ensure both devices are powered and configured to use the QSFP28 interface and that firmware or drivers support passive DAC attachments. Verify link status in device management interfaces and check for appropriate speed and duplex settings. For reliable operation, avoid bending the cable sharply near the connector and route it to minimize mechanical stress and interference.
Usage recommendations
Use this 2 m DAC cable for short‑reach 100 Gbps links inside racks or between adjacent racks. Confirm port compatibility with QSFP28 passive copper assemblies in device documentation before deployment, and adhere to handling practices to preserve connector integrity and signal quality.

## FAQ

### How much does the CBO QSFP28 to QSFP28 DAC Cable 2 m cost, and is it available for purchase?

The price is 110.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 270 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 24.07.2026 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 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

## Image

https://aio.lv/img/cache/product/4470523/59853442_large.webp