# DAC cable BlueOptics R9F93A SFP28 25Gbps passive twinax copper direct-attach

**URL:** https://aio.lv/en/product--blueoptics-r9f93a-bl--7864307
**Data updated:** 2026-03-07 15:17 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** R9F93A-BL
**EAN:** 4063232285139
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 111.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-r9f93a-bl--7864307

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.99 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Direct-attach copper (DAC) cable BlueOptics R9F93A is a passive twinax SFP28 interconnect supporting 25Gbps data rate. Designed for short-reach connectivity between SFP28 ports in switches, NICs and storage devices, it provides low-latency, power-efficient links for data centers, server racks and top-of-rack deployments where fiber is not required.

## Long description

BlueOptics R9F93A is a passive twinax DAC cable with SFP28 connectors engineered for 25 Gbps short-reach links. It provides a direct-attach copper connection between SFP28 ports in switches, network interface cards and storage devices, offering a low-latency, power-efficient alternative to active modules and optical transceivers where fiber cabling is unnecessary. The cable is intended for short horizontal and rack-level interconnects in data centers and server rooms that require reliable 25Gbps connectivity.
Advantages
The passive twinax design delivers consistent 25 Gbps throughput with minimal latency and reduced power consumption compared with active optical solutions. Being a direct-attach copper cable, it eliminates the need for separate transceivers and fiber patching, simplifying installation and lowering component count. The SFP28-form factor ensures compatibility with SFP28 ports in modern switches, NICs and storage appliances, while the copper medium provides robust performance for short distances commonly found inside racks and between adjacent racks.
Suitable for
 Short-reach connections between SFP28 ports in data center switches
 Direct links from servers or NICs to top-of-rack switches
 Interconnects in rack-to-rack or shelf-to-shelf deployments within the same room
 High-density environments that require low-latency, power-efficient cabling
Key specifications
 Connector type: SFP28 direct-attach
 Media: passive twinax copper
 Data rate: 25 Gbps
 Typical use: short-reach, rack-level interconnects
 Form factor compatibility: SFP28 ports on switches, NICs and storage devices
How to use
Install the cable by inserting each SFP28 connector into the corresponding SFP28 port on network equipment until the latch engages. Ensure both ends are compatible with SFP28 ports and that the connected devices support 25 Gbps operation. Route the cable to avoid sharp bends and excessive tension; maintain slack for maintenance access. No external power is required for the passive twinax DAC, and because it is a direct-attach solution there is no separate transceiver to install.
Usage recommendations
For reliable performance, use this passive DAC for short intra-rack or adjacent-rack links where distances fall within the cable’s supported range, avoid repeated unplugging which can wear connector latches, and follow equipment vendor guidance for supported DACs to ensure compatibility with switch and NIC firmware.

## FAQ

### How much does the BlueOptics R9F93A SFP28 25Gbps DAC cable cost, and is it available for purchase?

The price is 134.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 90 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 23.07.2026 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 BlueOptics 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 BlueOptics 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