# BlueOptics SFP2121BU50MK InfiniBand fibre optic cable 50 m LC Yellow

**URL:** https://aio.lv/en/product--blueoptics-sfp2121bu50mk--4469503
**Data updated:** 2026-02-25 16:34 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP2121BU50MK
**EAN:** 4063232610740
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 38.49 €
**Prices and availability valid until:** 2026-08-03 23:59
**Price without VAT (21%):** 31.81 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp2121bu50mk--4469503

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics SFP2121BU50MK is a 50 m InfiniBand fibre optic cable featuring LC connectors. It utilizes G.657.A1 fibre type, ensuring high performance and reliability for data transmission. Ideal for connecting devices in data centers or networking environments.

## Long description

The BlueOptics SFP2121BU50MK InfiniBand fibre optic cable is a 50 m LC–LC simplex patch cord designed for single-mode transmission using G.657.A1 fiber. Finished in yellow with LC/PC connectors on both ends and a flame-retardant LSZH jacket, this cable supports 1310 nm and 1550 nm wavelengths and is intended for reliable interconnection of optical transceivers, patch panels and active networking equipment in data centers and telecom enclosures.
Advantages
This cable uses G.657.A1 single-mode fiber optimized for low bend loss and stable signal transmission over the specified distance. The LSZH outer jacket reduces smoke and avoids halogen emissions in case of fire, meeting common safety requirements for indoor installations. Connectors employ high-quality zirconia ceramic ferrules and branded components that provide consistent insertion/return loss performance; each cable is factory-tested with interferometer and OTDR and shipped with a measurement protocol documenting input and return loss.
Suitable for
Interconnecting optical transceivers in switches, servers and storage devices
Patch panel to patch panel connections in data centers and server rooms
InfiniBand and high-speed networking links requiring single-mode LC terminations
Cable runs where reduced bend sensitivity is required (tight routing or cabinet transitions)
Key specifications
Length: 50 meters
Connector type: LC to LC, simplex, PC polish
Fiber type: Single-mode G.657.A1 (9/125 µm)
Wavelengths supported: 1310 nm and 1550 nm
Typical attenuation: approx. 0.4 dB/km
Jacket: LSZH (low smoke zero halogen), yellow
Durability: zirconia ceramic ferrule, up to ~1500 mating cycles (manufacturer specification)
Testing: interferometer and OTDR test with measurement report included
How to use
Route the BlueOptics LC–LC patch cord between the two LC ports to be connected, taking care to maintain minimum bend radii and avoid sharp kinks. Remove protective dust caps from the LC connectors before insertion and, if present, clean connector endfaces with appropriate fiber cleaning tools to ensure low insertion loss. Insert the LC connectors into the transceiver or patch panel ports until they latch; repeat on the opposite end. After installation, verify link status and review the included measurement report to confirm insertion and return loss are within acceptable limits.
Usage recommendations
Store and handle the cable coil without twisting and maintain recommended bend radius for G.657.A1 fiber. Use dust caps whenever connectors are not engaged, perform end-face cleaning before mating, and follow equipment manufacturer guidelines for optical power levels to avoid receiver damage.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.01 kg |
| Package weight | 20 g |
| Cable length | 50 m |
| Product colour | Yellow |
| Connector 1 | LC |
| Connector 2 | LC |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Quantity per pack | 1 pc(s) |
| Fibre optic type | G.657.A1 |
| Connector polish type | UPC |

## FAQ

### How much does the BlueOptics SFP2121BU50MK InfiniBand fibre optic cable cost, and is it available for purchase?

The price is 38.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 17 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 03.08.2026 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

## Image

https://aio.lv/img/cache/product/4469503/64297876_large.webp