Description
DPT PM2144UW Ultra Wide SCSI Controller PCI Card w/ RC4040 16MB Cache Module
The DPT PM2144UW is a 32-bit PCI Ultra Wide SCSI controller card designed for high-performance server and workstation storage. It delivers up to 40 MB/s Fast-20 Wide synchronous SCSI transfers and includes an on-board processor that offloads SCSI processing from the host CPU, reducing overhead and improving overall system throughput. This listing includes the PM2144UW controller paired with a DPT RC4040 cache/RAID module populated with 16MB of memory (four 4MB chips).
Specifications & What's Included
- Model: DPT PM2144UW
- Cache/RAID Module: DPT RC4040
- Part Number (Controller): HA-0335-005-A
- Part Number (Cache Module): HA-0811-005-B
- System Bus Interface: 32-bit PCI
- Form Factor: Half-size PCI card
- Data Transfer Rate: Up to 40 MB/s (Fast-20 Wide Synchronous)
- SCSI Standards: SCSI, SCSI-2, SCSI-3, Ultra SCSI, Ultra Wide SCSI
- External Connector: 68-pin High Density (1x, on bracket)
- Internal Connectors: 68-pin High Density + 50-pin Low Density
- Supports both Wide (16-bit) and standard 8-bit SCSI devices simultaneously
- Active termination
- On-board processor for reduced SCSI and CPU overhead
- Overlapped I/O and tagged command queuing
- ASPI protocol support for third-party application compatibility
- Optional error-correcting memory and data path protection
- RC4040 Cache Memory: 16MB installed (four 4MB chips); expandable to 64MB
- RAID Levels Supported: RAID 0, 1, and 5
- Hot-swap capable when used with DPT RAID subsystems
- Main controller IC: MC68EC020F625 (visible on PCB)
- Includes: PM2144UW SCSI controller card + RC4040 16MB cache/RAID module
Applications
The DPT PM2144UW was a high-end SCSI host adapter from the mid-to-late 1990s, targeted at servers and high-performance workstations running Windows NT, NetWare, SCO Unix, and similar platforms of that era. It was commonly deployed in file servers, storage arrays, and imaging workstations where multiple SCSI hard drives, tape drives, and scanners needed to run concurrently at maximum throughput. The pairing with the RC4040 cache and RAID module made it a complete hardware RAID solution without requiring a dedicated RAID appliance — the controller handled RAID 0 (striping), RAID 1 (mirroring), and RAID 5 (parity) entirely in hardware, independent of the host CPU. Today, units like this are sought by vintage server enthusiasts, legacy system administrators maintaining older NT or NetWare installations, and collectors of late-1990s enterprise storage hardware.
This DPT PM2144UW Ultra Wide SCSI PCI controller card with RC4040 cache/RAID module has been pulled from a working environment where it was previously in use. The card and module have been visually inspected and appear to be in good used condition. The PCB shows no visible cracks, burn marks, or damaged traces. Normal light handling wear is present, consistent with prior installation. The bracket and external SCSI connector appear intact. Please review all photos and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
DPT |
Model: |
PM2144UW |
MPN: |
PM2144UW |
Secondary Model: |
RC4040 |
Type: |
Ultra Wide SCSI Controller Card with Cache/RAID Module |
SKU: |
18150 |
Interface: |
32-bit PCI |
SCSI Standard: |
SCSI, SCSI-2, SCSI-3, Ultra Wide SCSI, Ultra SCSI |
Data Transfer Rate: |
Up to 40 MB/s (Fast-20 Wide Synchronous) |
External Connector: |
68-pin High Density |
Internal Connectors: |
68-pin High Density, 50-pin Low Density |
Form Factor: |
Half-Size PCI Card |
Cache Memory: |
16MB (via RC4040 module — four 4MB chips) |
Max Cache Memory: |
Up to 64MB (with RC4040 expansion) |
RAID Levels Supported: |
RAID 0, 1, 5 |
Hot Swap Support: |
Yes (with RAID/Caching Module and DPT RAID subsystem) |
On-Board Processor: |
Yes — reduces SCSI and CPU overhead |
Tagged Command Queuing: |
Yes |
Overlapped I/O: |
Yes |
ASPI Support: |
Yes |
ECC Memory Support: |
Optional error-correcting memory |
Termination: |
Active termination |
Compatible With: |
DPT RAID subsystems; standard 32-bit PCI motherboards |
Country/Region of Manufacture: |
United States |
Seller Notes: |
Includes PM2144UW SCSI controller card and RC4040 16MB cache/RAID module |
Condition Notes: |
This DPT PM2144UW SCSI PCI controller with RC4040 cache module was pulled from a working environment and visually inspected. PCB and connectors appear intact with normal used wear. Not bench-tested at our facility. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |