# StarTech LOOPBACKMTP12OS2SMM Single Mode MPO/MTP Fiber Loopback Tester

**URL:** https://aio.lv/en/product--startech-loopbackmtp12os2smm--12474485
**Data updated:** 2026-05-18 09:31 (EEST)
**Category:** Network Cables
**Manufacturer:** StarTech
**Manufacturer code:** LOOPBACKMTP12OS2SMM
**EAN:** 0065030925242
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 83.99 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 69.41 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-loopbackmtp12os2smm--12474485

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.06.2026 | free |
| Pickup points | 30.06.2026 | 1.99 EUR |
| Courier delivery to door | 30.06.2026 | 4.99 EUR |

## Summary description

The StarTech LOOPBACKMTP12OS2SMM is a professional single-mode fiber loopback tester designed for MPO/MTP connectors. This compact device is essential for testing and troubleshooting fiber optic network links, ensuring signal integrity and performance. It is TAA, RoHS, and CE compliant, making it a reliable tool for network technicians and IT infrastructure maintenance in various high-speed data environments.

## Long description

The StarTech LOOPBACKMTP12OS2SMM is a professional-grade single-mode fiber loopback tester engineered for MPO/MTP connectivity. This compact and lightweight device serves as an essential diagnostic tool for network technicians and IT professionals tasked with verifying signal integrity and troubleshooting high-speed fiber optic network links. By providing a reliable return path for optical signals, it allows for efficient testing of transceivers and network equipment, ensuring that your infrastructure meets performance standards.
Advantages
This loopback tester offers exceptional reliability for testing MPO/MTP fiber optic systems. Its compact design ensures it can be easily integrated into various testing environments without adding unnecessary bulk. Being TAA, RoHS, and CE compliant, it meets rigorous industry standards for safety and quality, providing peace of mind for enterprise-level deployments. The device is specifically optimized for single-mode applications, ensuring precise signal transmission and accurate diagnostic results during network maintenance or installation phases.
Suitable for
Testing and troubleshooting MPO/MTP fiber optic network links
Verifying the functionality of fiber optic transceivers
Network infrastructure maintenance in high-speed data environments
Quality assurance testing for fiber optic cabling systems
When it may not be suitable
This device is specifically designed for single-mode MPO/MTP fiber optic connections and is not compatible with multi-mode fiber systems or different connector types such as LC or SC. It is intended for diagnostic loopback testing and cannot be used as a standard data transmission cable for permanent network installations.
Key specifications
Product type: Fiber cable tester
Connector type: MPO/MTP
Fiber mode: Single-mode
Dimensions: 11.8 mm x 130 mm x 9.4 mm
Weight: 0.004 kg
Color: Yellow, Green, Black
How to use
To use the loopback tester, simply insert the MPO/MTP connector into the port of the transceiver or network equipment you wish to test. The device creates a closed-loop path, allowing the equipment to transmit and receive its own signal. Once connected, use your network diagnostic software or hardware interface to initiate the test. The system will then verify the signal integrity and report any potential faults or performance issues within the link. After testing is complete, carefully remove the device to avoid damaging the connector pins.
What to consider before purchase
Ensure your equipment utilizes MPO/MTP interfaces
Verify that your network infrastructure requires single-mode fiber testing
Check if your diagnostic equipment supports loopback testing protocols
Usage recommendations: Always inspect the fiber connector faces for dust or debris before insertion to ensure accurate test results and prevent damage to your equipment ports. Store the device in a clean, dry environment when not in use.

## Specifications

| Feature | Value |
|---|---|
| Housing material | Acrylonitrile butadiene styrene (ABS) |
| Fiber mode structure | Single-mode |
| Built-in display | No |
| Test type | Loopback testing |
| Supported connectors | MPO/MTP |
| Fibre optic type | OS1/OS2 |

### Features

| Feature | Value |
|---|---|
| Product colour | Yellow, Green, Black |
| Connector gender | Male |

### Other features

| Feature | Value |
|---|---|
| Product type | Fiber cable tester |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.004 kg |
| Height | 9.4 mm |
| Width | 11.8 mm |
| Depth | 130 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 75 |
| Operating temperature (T-T) | -40 - 75 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 9 g |
| Package depth | 120 mm |
| Package height | 13 mm |
| Package width | 220 mm |

### Logistics data

| Feature | Value |
|---|---|
| Master (outer) case height | 400 mm |
| Master (outer) case width | 430 mm |
| Master (outer) case length | 335 mm |
| Products per master (outer) case | 360 pc(s) |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | Trade Agreements Act (TAA), RoHS, CE |

## FAQ

### How much does the StarTech LOOPBACKMTP12OS2SMM Fiber Loopback Tester cost, and is it available for purchase?

The price is 83.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 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 25.06.2026 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 StarTech 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 StarTech 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/12474485/68793280_large.webp