# BlueOptics SFP2121BU1MK InfiniBand fibre optic cable 1 m LC Yellow

**URL:** https://aio.lv/en/product--blueoptics-sfp2121bu1mk--4469498
**Data updated:** 2026-02-25 16:34 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP2121BU1MK
**EAN:** 4063232610795
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp2121bu1mk--4469498

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The BlueOptics SFP2121BU1MK is a 1 m InfiniBand fibre optic cable featuring LC connectors. It utilizes G.657.A1 fibre type with a core diameter of 9 µm, ensuring full duplex communication. Ideal for high-speed data transmission in data centers and networking applications.

## Long description

The BlueOptics SFP2121BU1MK is a 1 m InfiniBand fibre optic patch cable with LC connectors and a single-mode G.657.A1 optical fibre. Designed for full-duplex transmission, this yellow LC–LC cable supports typical single-mode wavelengths (1310 nm / 1550 nm) and is intended for high-speed interconnects in data centres and networking environments. The cable is supplied with an LSZH flame-retardant jacket and factory-tested optical performance including attenuation and return-loss measurements.
Advantages
This 1 m BlueOptics cable offers low attenuation and high return loss values suitable for reliable single-mode links. Connectors use zirconia ceramic ferrules and branded components to ensure mechanical stability and a long mating-life. The LSZH outer jacket reduces smoke and halogen emissions in the event of a fire, meeting common industry safety norms. Each cable is tested with interferometer and OTDR methods and shipped with measurement results for insertion loss and return loss.
Suitable for
 Short-range InfiniBand and fibre interconnects within racks and patch panels
 Connecting optical transceivers and patch panel ports using LC connectors
 Single-mode network links operating at 1310 nm or 1550 nm
 Data centre and enterprise networking installations requiring LSZH jackets
Key specifications
 Length: 1 m
 Connector type: LC to LC (simplex)
 Fibre type: Single-mode G.657.A1 (9 µm core, E9/125 µm)
 Wavelengths: 1310 nm and 1550 nm compatible
 Attenuation: approx. 0.4 dB/km (typical)
 Jacket: LSZH (low smoke zero halogen), yellow
 Full duplex: supported
 Tested with: interferometer and OTDR; measurement protocol included
 Standards: manufactured to common industry norms for flame and safety
How to use
Inspect connectors and keep protective caps on until installation to avoid contamination. Route the 1 m patch cord through cable management to avoid tight bends and strain; adhere to the recommended minimum bend radius for single-mode G.657.A1 fibre. Insert the LC connectors into the corresponding LC ports on patch panels or transceivers until they click. Verify link continuity and optical loss using appropriate test equipment; use the supplied measurement protocol to compare factory values with in-situ readings.
Usage recommendations
Use the BlueOptics SFP2121BU1MK for short rack-to-rack or module-to-module connections where single-mode performance and LSZH safety are required. Avoid exceeding the specified bend radius and protect connector endfaces from dust; clean using fibre-optic approved cleaning tools if necessary. For custom lengths or polished-end requirements (UPC/APC), consult product options prior to purchase.

## Specifications

| Feature | Value |
|---|---|
| Certification | IEC-61034,IEC-754-1, IEC 60332-1, IEC 60332-3, IEC/EN 60950 |
| Full duplex | Yes |
| Cable length | 1 m |
| Product colour | Yellow |
| Connector material | Ceramic |
| Connector 1 | LC |
| Connector 2 | LC |
| Cable diameter | 2 mm |
| Fiber mode structure | Single-mode |
| Core diameter | 9 µm |
| Cladding diameter | 125 µm |
| Jacket material | Low smoke zero halogen (LSZH) |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Quantity per pack | 1 pc(s) |
| Wavelengths supported | 1550, 1310 |
| Fibre optic type | G.657.A1 |
| Doesn't contain | Halogen |
| Connector polish type | UPC |
| Compliance certificates | RoHS |

## FAQ

### How much does the InfiniBand fibre optic cable BlueOptics SFP2121BU1MK cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 136 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 15.07.2026 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, Bank cards on-line, Apple Pay, Google Pay. 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/4469498/64297856_large.webp