# Transceiver module HP Enterprise JL251A-RFB 40G QSFP+ BiDi (single-lambda bidirectional)

**URL:** https://aio.lv/en/product--hp-enterprise-jl251a-rfb--5288567
**Data updated:** 2026-01-12 19:31 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** HP Enterprise
**Manufacturer code:** JL251A-RFB
**EAN:** 5704174956815
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 191.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 158.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-enterprise-jl251a-rfb--5288567

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

HP Enterprise JL251A-RFB is a 40G QSFP+ bidirectional (BiDi) optical transceiver module designed for short-reach fiber links. It supports 40 Gbps aggregate throughput over duplex multimode or single-mode fiber using QSFP+ interface and single-lambda BiDi operation, enabling higher port density and simplified cabling for data centers, aggregation and enterprise networks.

## Long description

HP Enterprise JL251A-RFB is a 40G QSFP+ BiDi (single-lambda bidirectional) optical transceiver module engineered for short-reach fiber links. The module supports an aggregate 40 Gbps throughput over duplex multimode or single-mode fiber using a QSFP+ interface and single-wavelength bidirectional signaling. Designed for data center, aggregation and enterprise network environments, this transceiver helps increase port density and reduces cabling complexity by enabling bidirectional transmission on a single fiber pair.
Advantages
The JL251A-RFB transceiver delivers 40G connectivity in a QSFP+ form factor while using single-lambda bidirectional optics to reduce fiber count and simplify cabling. It provides compatibility with standard QSFP+ interfaces and is intended for short-reach applications, making it suitable where compact, high-density 40G links are required. The module's design supports integration into existing network equipment from HP Enterprise and other compatible systems that accept QSFP+ transceivers.
Suitable for
 Data center uplinks and top-of-rack (ToR) switches requiring 40G short-reach connections
 Enterprise aggregation links where reduced fiber cabling is desired
 Network equipment with QSFP+ ports supporting single-lambda BiDi optics
 Environments aiming to increase port density while maintaining 40G throughput
Key specifications
 Brand: HP Enterprise
 Manufacturer part number (MPN): JL251A-RFB
 EAN: 5704174956815
 Form factor: QSFP+
 Data rate: 40 Gbps aggregate
 Optical mode: Single-lambda bidirectional (BiDi)
 Intended reach: Short-reach fiber links (multimode or single-mode)
 Category: Network transceiver module
How to use
Install the JL251A-RFB into a compatible QSFP+ port on network equipment while the device is powered down or following the manufacturer's hot-swap guidance. Use appropriate single-lambda BiDi fiber patching that matches the module's transmit/receive wavelength arrangement and the connected port's requirements. Verify link status and port configuration on the switch or router software to ensure the transceiver is recognized and operating at 40 Gbps. Follow any vendor-specific compatibility and firmware recommendations to maintain proper operation.
Использование и рекомендации
For reliable performance, use certified fiber cabling and maintain proper optical cleanliness. Confirm compatibility with your switch or router model and consult HP Enterprise documentation for detailed installation and interoperability notes.

## FAQ

### How much does the HP Enterprise JL251A-RFB 40G QSFP+ BiDi module cost, and is it available for purchase?

The price is 191.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 09.07.2026 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 HP Enterprise 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 Enterprise 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

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