# Network Cable BlueLAN CAB-Q-4S-100G-2M QSFP28 to 4xSFP28 100GBASE-CR4 2M Blue

**URL:** https://aio.lv/en/product--blueoptics-cab-q-4s-100g-2m-bl--10894202
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** CAB-Q-4S-100G-2M-BL
**EAN:** 4063232642130
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 173.49 €
**Prices and availability valid until:** 2026-08-28 23:59
**Price without VAT (21%):** 143.38 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-cab-q-4s-100g-2m-bl--10894202

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.08.2026 | free |
| Pickup points | 01.09.2026 | 1.79 EUR |
| Courier delivery to door | 01.09.2026 | 4.99 EUR |

## Summary description

The BlueLAN CAB-Q-4S-100G-2M is a passive 100GBASE-CR4 QSFP28 to 4x25GBASE-CR SFP28 direct attach breakout cable. It features a length of 2 meters and is made with AWG26 wire, ensuring high performance and reliability for data center applications. This cable is ideal for connecting high-speed devices and offers excellent signal integrity with minimal loss.

## Long description

The BlueLAN CAB-Q-4S-100G-2M QSFP28 to 4xSFP28 100GBASE-CR4 2M Blue is a passive direct attach breakout cable designed for short-reach, high-speed interconnects in data center and enterprise switching environments. With a 2 meter length and AWG26 conductor construction, this cable provides a reliable physical link between a QSFP28 port and four SFP28 ports, enabling 100G to 4x25G breakout connections with low insertion loss and stable signal integrity.
Advantages
This passive breakout cable offers low power consumption since it requires no active components. The AWG26 wiring and optimized shielding deliver consistent performance and minimal crosstalk, while the 2 m length supports flexible rack-to-rack or within-rack connections. The QSFP28 to 4xSFP28 configuration simplifies upgrades and port-splitting for switches, routers, and NICs without additional transceivers.
Suitable for
 Aggregating or splitting 100G ports to 4x25G ports in data centers
 High-density top-of-rack switch interconnects
 Server to switch connections using QSFP28 and SFP28 interfaces
 Short-reach links where passive DACs are preferred
Key specifications
 Connector type: QSFP28 to 4× SFP28 passive breakout
 Data rate: 100GBASE-CR4 (breakout to 4×25GBASE-CR)
 Length: 2 meters
 Conductor gauge: AWG26
 Cable type: Passive direct attach copper
 Typical use: Short-reach, within-rack or adjacent-rack links
How to use
Insert the QSFP28 end into the 100G-capable QSFP28 port and plug each SFP28 connector into the corresponding 25G SFP28 ports. Ensure both ends are fully seated and that devices are powered down or support hot-plugging according to vendor guidelines. Verify link negotiation and interface status on connected devices; many systems will automatically detect the 4x25G breakout configuration. Avoid excessive bending near the connectors and secure the cable to prevent strain on ports.
Usage recommendations
Use this passive DAC for short-distance connections where low latency and low power are priorities. For runs beyond the recommended short-reach range or environments requiring electrical isolation, consider active optical solutions or fiber-based transceivers. Inspect connectors for debris before insertion and follow equipment vendor documentation for breakout port support and firmware compatibility.

## FAQ

### How much does the Network Cable BlueLAN CAB-Q-4S-100G-2M cost, and is it available for purchase?

The price is 173.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 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 27.08.2026 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