# ROLINE Fiber Optic Keystone Jack LC/LC Duplex Multimode OM4 21.17.0002

**URL:** https://aio.lv/en/product--roline-21170002--1093055
**Data updated:** 2026-01-03 12:48 (EET)
**Category:** Network Equipment Accessories
**Manufacturer:** ROLINE
**Manufacturer code:** 21.17.0002
**EAN:** 7611990120147
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--roline-21170002--1093055

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The ROLINE Fiber Optic Keystone Jack LC/LC Duplex Multimode OM4 21.17.0002 is designed for high-speed data transmission. It features a duplex design for efficient connectivity and is compatible with multimode fiber networks. Ideal for use in data centers and network installations, it ensures reliable performance and easy integration into existing systems.

## Long description

ROLINE Fiber Optic Keystone Jack LC/LC Duplex Multimode OM4 21.17.0002 is a keystone-style adapter for multimode fiber optic cabling. It provides two LC duplex ports (2x LC / 2x LC, female) in a compact plastic housing designed for installation in fiber optic faceplates or for extending fiber optic jumper cables. The adapter uses phosphor-bronze (PB) sleeves for the ferrules and is intended for OM4 multimode fiber networks.
Advantages
The keystone format allows easy snap-in installation into compatible modules and faceplates, while the high-quality plastic housing ensures mechanical stability. Duplex LC connectivity offers space-efficient pairing of multimode fibers, and the phosphor-bronze ferrule sleeves provide reliable alignment and corrosion resistance. The jack is compatible with standard multimode jumpers and simplifies extension or panel termination tasks.
Suitable for
Multimode OM4 fiber networks
Installation in fiber optic wall plates and patch panels
Extending or joining LC multimode jumper cables
Data center and enterprise network cabling
Key specifications
Connector type: 2x LC / 2x LC (duplex, female)
Fiber type: Multimode OM4
Housing: High-quality plastic, keystone format
Ferrule sleeve material: Phosphor-bronze (PB)
Brand: ROLINE
MPN: 21.17.0002
EAN: 7611990120147
How to use
Insert the keystone jack into a compatible keystone opening on a fiber optic faceplate or patch panel until it snaps into place. Connect LC multimode jumper cables by aligning and inserting the LC connectors into the duplex ports. For cable extension, join two LC multimode jumpers using the adapter to ensure proper alignment of the fiber cores. Verify connections using appropriate optical test equipment after installation.
Usage recommendations
Use this keystone jack with OM4-rated multimode cables and LC connectors. Avoid excessive bending of fiber jumpers near the adapter and ensure connectors are clean before mating to maintain optimal signal performance.

## FAQ

### How much does the Fiber Optic Keystone Jack ROLINE 21.17.0002 cost, and is it available for purchase?

The price is 4.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 327 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 01.07.2026 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: Cash payment, 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 ROLINE 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 ROLINE 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/1093055/64142805_large.webp