SUNIX 4037T Dual Port RS-232 DB9 Serial Universal PCI Card
SUN1889 Controller | Low Profile SFF Triangular PCB | VER 3.2 | Universal 3.3V/5V PCI
Item Overview
This is a pre-owned, Genuine SUNIX 4037T (VER3.2) Dual-Port RS-232 Serial Universal PCI Card powered by the high-reliability SUNIX SUN1889 UART controller. Designed specifically with a unique low-profile triangular wedge PCB profile and diagonal top cutout, this card fits seamlessly around internal chassis components inside compact Small Form Factor (SFF) corporate desktop cases such as Dell OptiPlex and HP Compaq series. Featuring 2x male DB9 ports directly on the bracket, on-chip 32-byte hardware FIFO buffers, and ±2KV ESD line protection, it provides reliable industrial COM port expansion for POS systems, CNC machinery, barcode scanners, and lab instrumentation.
- Genuine SUNIX SUN1889 Core: 16C650 UART compatible controller delivering high-speed baud rates up to 115.2 Kbps (capable of up to 921.6 Kbps depending on driver settings).
- Universal PCI Interface: Dual-notched edge connector supports 3.3V and 5V PCI signaling across both 32-bit and 64-bit standard PCI slots.
- Low-Profile Wedge PCB Design: Engineered with a custom diagonal notch to clear internal chassis obstruction in tight SFF desktop environments.
- Built-in ±2KV ESD Line Protection: Hardware-level electrostatic discharge protection safeguards serial signal lines against voltage spikes and static interference.
- Plug and Play Setup: Automatic BIOS IRQ and I/O address assignment for hassle-free installation without manual jumper configuration.
Item Specifications Manufacturer / Brand SUNIX Co., Ltd. Model / Part Number SUNIX 4037T (VER3.2) Main Controller (UART) SUNIX SUN1889 (16C650 UART Compatible) Bus Interface Universal PCI (32-bit / 64-bit, 3.3V & 5V Signaling) PCI Spec Compliance PCI Specification Ver 2.1 / 2.2 / 2.3 Serial Ports 2 x Male DB9 RS-232 Ports (Integrated on Bracket) Baud Rate Speed 50 bps up to 115.2 Kbps (Max 921.6 Kbps) FIFO Buffers 32-Byte On-Chip Hardware FIFO + 128KB Software FIFO Data Bits / Stop Bits Data: 5, 6, 7, 8 | Stop: 1, 1.5, 2 Parity & Flow Control Parity: None, Even, Odd, Space, Mark | Flow: Hardware (RTS/CTS) & Software (Xon/Xoff) ESD Protection ±2KV ESD Protection (Human Body Model) on signal lines Form Factor Low-Profile / SFF Triangular Wedge Cutout PCB Warranty Coverage 30 Days Functional Replacement / Money-Back Guarantee System & Driver Compatibility ✔️ Standard 32-bit & 64-bit PCI Expansion Slots ✔️ Windows 11, 10, 8, 7, Vista, XP, 2000, 98SE (32/64-bit) ✔️ Windows Server 2003 / 2008 / 2012 / POSReady / CE ✔️ Linux Kernel 2.4.x / 2.6.x / 3.x+ (Native 8250/16550 Driver) ✔️ Legacy OS: MS-DOS, FreeBSD, QNX, IBM OS/2 Warp ❌ NOT Compatible with PCIe (PCI Express x1 / x4 / x16) Slots ⚠️ PCI SLOT INTERFACE NOTICE
• Legacy PCI Slot Only: This card utilizes a Universal PCI edge connector. It fits standard legacy PCI slots on desktop and industrial motherboards. It **WILL NOT FIT** in PCI Express (PCIe) slots.
• DB9 RS-232 Pinout Standard: Each port follows standard RS-232 pin assignment: Pin 1 (DCD), Pin 2 (RxD), Pin 3 (TxD), Pin 4 (DTR), Pin 5 (GND), Pin 6 (DSR), Pin 7 (RTS), Pin 8 (CTS), Pin 9 (RI). Shipping & Anti-Static Packaging
Free & Fast Shipping within Australia: Orders are dispatched within 1 business day via tracked Australia Post services. Tracking details automatically update in your order history.
Anti-Static Shield Packaging: Serial controllers contain sensitive integrated circuits vulnerable to electrostatic discharge (ESD). Each card is sealed inside an ESD static-shielding bag, wrapped in thick high-density bubble cushioning, and boxed securely for transit.
Local Pickup: Available from our commercial warehouse hub situated in Belmore, Sydney.
International Shipping: Worldwide options are available. All cross-border customs fees, local taxes, or import duties remain the buyer's responsibility.
Payment
We process standard secure options including PayPal, Apple Pay, Google Pay, Credit Cards, and Direct Electronic Bank Transfers. Complete clearance is requested within 4 days of purchase.
Returns & Electrostatic Safety Guidelines
Backed by our solid 30-Day Satisfaction Guarantee. Before installing expansion cards, **always turn off your computer, disconnect main AC power, and ground yourself to discharge static electricity**. Ensure PCI gold contacts line up properly before seating into the slot. Returns cannot be accepted for boards with burnt UART chips due to live-swapping or physical PCB cracks caused by forced installation.
💻 Why Buy From 8‑bit Technologies?
We specialize in enterprise computing hardware, industrial serial expansion components, and legacy system parts. Every card is individually bench-inspected, static-protected, and packaged with extreme care to keep your maintenance projects moving smoothly.
