# Copper SFP+ Direct Attach Cable BlueOptics MCP21J2-X02AA 10GBASE-CR 3 m

**URL:** https://aio.lv/en/product--blueoptics-mcp21j2-x02aa-bl--10672960
**Data updated:** 2026-02-25 16:39 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** MCP21J2-X02AA-BL
**EAN:** 4063232314938
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 47.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 39.66 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-mcp21j2-x02aa-bl--10672960

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

BlueOptics SFP+ direct attach cable (DAC) MCP21J2-X02AA is a 3 m copper twinax cable supporting 10GBASE-CR connectivity for short-range 10 Gigabit Ethernet links. Designed for SFP+ ports, the passive cable provides low-latency, high-throughput connection between switches, servers or storage devices in data centers, rack-mount systems and network uplinks.

## Long description

BlueOptics MCP21J2-X02AA is a 3 m copper SFP+ direct attach cable (DAC) designed for short-range 10 Gigabit Ethernet links. The cable is terminated with SFP+ form-factor connectors and implements 10GBASE-CR electrical signalling over twinax copper, offering a compact and low-latency connection option for servers, switches and storage appliances in rack and data centre environments.
Advantages
This 3 m copper DAC delivers predictable electrical performance with reduced power consumption compared with active optical solutions. The passive SFP+ cable provides low latency and high throughput for 10GBASE-CR links, and its fixed length and integrated connectors simplify installation and reduce the need for additional transceivers or patch cords. The rugged twinax construction and SFP+ form factor ensure reliable mating with compatible SFP+ ports and stable signal integrity across short distances.
Suitable for
Short-reach 10 Gigabit Ethernet links between top-of-rack switches and servers
Direct connections between network switches for uplinks and stacking
Storage area networks and server-to-storage links in rack-mount systems
High-density data centre environments where low latency is required
Key specifications
Form factor: SFP+ to SFP+ direct attach cable (twinax)
Media type: Copper twinax
Nominal length: 3 metres
Data rate: 10 Gigabit Ethernet (10GBASE-CR)
Connector compatibility: SFP+ ports (compatible with standard SFP+ cages)
Latency: Passive cable with minimal added latency suitable for short-range links
Typical use environment: Rack-mounted equipment and data centre interconnects
How to use
Insert each SFP+ connector into the corresponding SFP+ port on the network devices until the latch engages. Ensure that connected devices are powered and properly configured for 10G operation. Because this is a passive direct attach cable, no separate transceiver modules or optical equipment are required. Verify link status and speed on both ends using device management interfaces and network monitoring tools.
Usage recommendations
Use the cable for short-distance interconnects within the same rack or adjacent racks. Avoid sharp bends and excessive pulling on the cable; maintain bend radius recommended by the equipment vendor. Confirm compatibility with your device vendor's SFP+ port implementation and verify link negotiation settings to ensure stable 10GBASE-CR operation.

## FAQ

### How much does the BlueOptics SFP+ DAC MCP21J2-X02AA 10GBASE-CR 3 m cost, and is it available for purchase?

The price is 47.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 187 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 23.07.2026 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