--- product_id: 41097850 title: "IO Crest SI-PEX15056 4 Port DB9 Serial RS-232 Card PCI-Express x1 with Fan-Out Cable Asix99100 Chipset" brand: "syba" price: "€ 1.90" currency: EUR in_stock: false url: https://www.desertcart.pt/products/41097850-io-crest-si-pex15056-4-port-db9-serial-rs-232 store_origin: PT region: Portugal --- # 25 Mbps per port speed 4 external RS-232 serial ports ASIX AX99100 chipset with fan-out cable IO Crest SI-PEX15056 4 Port DB9 Serial RS-232 Card PCI-Express x1 with Fan-Out Cable Asix99100 Chipset **Brand:** syba **Price:** € 1.90 **Availability:** ❌ Out of Stock ## Summary > 🚀 Upgrade your legacy gear with lightning-fast serial power! ## Quick Answers - **What is this?** IO Crest SI-PEX15056 4 Port DB9 Serial RS-232 Card PCI-Express x1 with Fan-Out Cable Asix99100 Chipset by syba - **How much does it cost?** € 1.90 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/41097850-io-crest-si-pex15056-4-port-db9-serial-rs-232) ## Best For - syba enthusiasts ## Why This Product - Trusted syba brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Quad-Port Expansion:** Add 4 RS-232 serial connections instantly - • **Robust Flow Control:** Supports hardware and software flow control for zero data loss - • **Plug & Play Versatility:** Includes fan-out cable & low-profile bracket for any setup - • **Blazing Fast Serial Speeds:** Up to 25 Mbps per port for seamless data flow - • **Industrial-Grade Reliability:** Perfect for POS, data acquisition, and embedded systems ## Overview The IO Crest SI-PEX15056 is a PCI-Express x1 serial expansion card featuring 4 RS-232 ports powered by the ASIX AX99100 chipset. It delivers bi-directional speeds up to 25 Mbps per port, supports hardware and software flow control, and includes a fan-out cable plus a low-profile bracket for flexible installation in standard or compact PCs. Ideal for professionals needing reliable serial connectivity in industrial, POS, or embedded system environments. ## Description The IOCrest SI-PEX15056 lets you add 4 external RS-232 serial ports to your desktop computer. It comes with a Fan-out cable as well as a spare low-profile bracket for installing in standard or low profile systems. To be used in applications such as serial attached devices, serial networking/monitoring equipment, data acquisition system, POS terminal and industrial PC, add-on I/O cards-serial/USB, and embedded systems-for I/O expansion. . ## Features - ASIX AX99100 chipset - Bi-directional speeds up to 25 Mbps per port full Serial - Modem control - Supports hardware, software flow control ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | Syba | | Item model number | SI-PEX15056 | | Item Weight | 8.8 ounces | | Product Dimensions | 3.25 x 2.5 x 0.5 inches | | Item Dimensions LxWxH | 3.25 x 2.5 x 0.5 inches | | Manufacturer | Syba | | ASIN | B01LYRCG50 | | Is Discontinued By Manufacturer | No | | Date First Available | October 6, 2016 | ## Product Details - **Brand:** Syba - **Hardware Interface:** PCI Express x1 - **Style:** 4 port RS-232 - **Item Weight:** 8.8 ounces - **Compatible Devices:** Personal Computer ## Images ![IO Crest SI-PEX15056 4 Port DB9 Serial RS-232 Card PCI-Express x1 with Fan-Out Cable Asix99100 Chipset - Image 1](https://m.media-amazon.com/images/I/81QRIO1-hFL.jpg) ![IO Crest SI-PEX15056 4 Port DB9 Serial RS-232 Card PCI-Express x1 with Fan-Out Cable Asix99100 Chipset - Image 2](https://m.media-amazon.com/images/I/81FenYcNnWL.jpg) ![IO Crest SI-PEX15056 4 Port DB9 Serial RS-232 Card PCI-Express x1 with Fan-Out Cable Asix99100 Chipset - Image 3](https://m.media-amazon.com/images/I/81Ej38WpxiL.jpg) ![IO Crest SI-PEX15056 4 Port DB9 Serial RS-232 Card PCI-Express x1 with Fan-Out Cable Asix99100 Chipset - Image 4](https://m.media-amazon.com/images/I/71mCXKP8S2L.jpg) ![IO Crest SI-PEX15056 4 Port DB9 Serial RS-232 Card PCI-Express x1 with Fan-Out Cable Asix99100 Chipset - Image 5](https://m.media-amazon.com/images/I/71Xch1PLqpL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/41097850-io-crest-si-pex15056-4-port-db9-serial-rs-232](https://www.desertcart.pt/products/41097850-io-crest-si-pex15056-4-port-db9-serial-rs-232) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-25*