# Fiber Optic Coupling Lightwin ST‑ST Duplex Multimode LKUP DST‑DST MM VM

**URL:** https://aio.lv/en/product--lightwin-lkup-dst-dst-mm-vm--3802573
**Data updated:** 2025-12-29 13:49 (EET)
**Category:** Network Equipment Accessories
**Manufacturer:** Lightwin
**Manufacturer code:** LKUP DST-DST MM VM
**EAN:** 9120058270390
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 14.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lightwin-lkup-dst-dst-mm-vm--3802573

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

Lightwin ST‑ST Duplex multimode fiber optic coupling (LKUP DST‑DST MM VM) provides a duplex connection between two ST connectors for multimode fiber links. Designed for panel or chassis mounting, it enables reliable optical coupling and straightforward insertion of ST plugs. Suitable for local networks, industrial links, and equipment interconnects where multimode ST terminations are used.

## Long description

Lightwin ST‑ST Duplex Multimode LKUP DST‑DST MM VM is a fiber optic coupling designed to provide a reliable duplex connection between two ST multimode connectors. Intended for panel or chassis installation, the coupling ensures correct alignment and easy insertion of ST plugs for multimode fiber links used in local networks, industrial connections, and equipment interconnects.
Advantages
The Lightwin ST‑ST duplex coupling offers stable optical alignment, simple ST plug insertion and removal, and compact panel/chassis mounting compatible with standard cutouts. It is built for multimode environments and reduces signal loss at the connection point while maintaining consistent physical interface geometry.
Suitable for
 Local area network multimode fiber links
 Industrial fiber optic connections and control systems
 Interconnects between networking equipment or patch panels using ST multimode terminations
Key specifications
 Brand: Lightwin
 Model / MPN: LKUP DST‑DST MM VM
 Connector type: ST to ST (duplex)
 Fiber type: Multimode
 Mounting: Panel / chassis
 EAN: 9120058270390
How to use
Mount the coupling into the appropriate panel or chassis cutout. Insert ST plugs from each multimode fiber cable into the two ST ports until they engage. Ensure connectors are clean and free of dust before mating to minimize insertion loss. For removal, depress the ST bayonet and withdraw the plug with a straight pull.
Usage recommendations
For optimal performance, clean connector end-faces before each connection and avoid excessive bending of multimode fiber near the coupling. Use in environments that match the multimode fiber specifications and ensure compatible ST terminations on connected cables and equipment.

## FAQ

### How much does the Lightwin ST‑ST Duplex Multimode Coupling LKUP DST‑DST cost, and is it available for purchase?

The price is 17.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 27.07.2026 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 Lightwin 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 Lightwin 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/3802573/47596690_large.webp