# Network media converter transceiver HP X121 1G SFP RJ45 T, 1000 Mbit/s, 1000BASE-T, IEEE 802.3ab

**URL:** https://aio.lv/en/product--hp-j8177c--12055931
**Data updated:** 2026-03-12 19:39 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** HP
**Manufacturer code:** J8177C
**EAN:** 0884420143383
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 221.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 183.05 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-j8177c--12055931

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

HP X121 1G SFP RJ45 T is a wired network media converter transceiver supporting 1000 Mbit/s data rate and 1000BASE-T cabling. Compliant with IEEE 802.3ab, it provides SFP form-factor connectivity to convert fiber ports to copper RJ45 links. Typical power consumption is 1 W and the unit weighs 30 g — suitable for switches, routers and media-conversion in rack or access deployments.

## Long description

HP X121 1G SFP RJ45 T is a compact media converter transceiver designed to provide 1 Gbps copper connectivity from SFP fiber ports. Compliant with 1000BASE-T and IEEE 802.3ab standards, this SFP module allows network devices with SFP slots to connect to standard RJ45 copper Ethernet cabling at gigabit speeds. The module is low-power and lightweight, making it suitable for installation in network switches, routers and media-conversion panels in both rack and access environments.
Advantages
The transceiver delivers a simple way to convert fiber SFP ports to copper RJ45 links without additional adapters or chassis, supporting 1000 Mbit/s throughput and auto-negotiation on 1000BASE-T cabling. Its SFP form factor ensures compatibility with a wide range of networking equipment that accepts SFP modules. Typical power consumption around 1 W and a small physical footprint enable deployment in dense rack setups or distributed access locations where space and power are limited.
Suitable for
Connecting SFP-enabled switches or routers to copper Ethernet infrastructure
Extending network reach by linking fiber uplinks to copper access ports
Media conversion in data center top-of-rack or branch office installations
Temporary or permanent migrations from fiber to copper segments
Key specifications
Data rate: 1000 Mbit/s (1 Gbps)
Standard: 1000BASE-T, IEEE 802.3ab compliant
Interface: SFP form-factor to RJ45 (copper) port
Power consumption: approximately 1 W
Weight: approximately 30 g
Autonegotiation support for duplex and link speed on copper side
How to use
Insert the SFP transceiver into an available SFP slot on a compatible switch or router until it latches. Connect a standard Cat5e or better RJ45 Ethernet cable from the module’s copper port to the destination device or patch panel. Verify link status and speed via the host device management interface or LEDs; the module negotiates 1000BASE-T operation automatically when the remote endpoint supports gigabit copper. Remove the transceiver by releasing the SFP latch and gently pulling it out when powered down or according to the host equipment’s hot-swap guidance.
Usage recommendations
For reliable performance, use shielded or unshielded twisted-pair cabling rated Cat5e or higher, keep cable runs within standard 100 m limits for 1000BASE-T, and ensure the host device firmware supports third-party SFP modules if not from the same manufacturer. Avoid exposure to excessive dust, moisture and extreme temperatures during installation and operation.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Maximum data transfer rate | 1000 Mbit/s |
| Cabling technology | 1000Base-T |

### Power

| Feature | Value |
|---|---|
| Power consumption (typical) | 1 W |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.03 kg |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wired |

### Other features

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 13.7 x 14 x 68.8 |
| Compliance industry standards | IEEE 802.3ab |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 0 - 95 |
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | 0 - 70 |
| Storage relative humidity (H-H) | 0 - 95 |

## FAQ

### How much does the HPE X121 1G SFP RJ45 T Transceiver network media converter J8177C cost, and is it available for purchase?

The price is 221.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 14.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can HPE X121 1G SFP RJ45 T Transceiver network media converter J8177C be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 HP 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 HP 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: maximum data transfer rate, weight, 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

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