| Battery | 3.6V DC NiCad soldered on motherboard |
| BIOS | 128 KB - Phoenix BIOS V1.01.14E, 1.00.24E |
| Bus Architecture | ISA based system bus |
| Cache | Write Back 8 KB Internal (Level 1) Cache External (Level 2) 0 - 512 Kb |
| CPU | Intel 486 processor |
| Interfaces | 1 X DB-25F Parallel 1 X RS232,DB-9M Serial 15-pin HDF VGA PS/2 Mouse PS/2 Keyboard 34-pin on board FDD 40-pin IDE HDD 26-pin VESA 15 pin Game |
| IRQ Availability | 00 Timer Click 01 Keyboard 02 Second 8259A 03 COM2 or COM4 04 COM1 or COM3 05 LPT2 or Sound Card (if present) 06 Floppy Disk 07 LPT1 08 Real-Time Clock 09 Redirected IRQ2 10 Sound Card (if present) 11 (reserved) 12 PS/2 Mouse 13 Math Co-processor (if present) 14 Fixed Disk Controller 15 Secondary Fixed Disk Controller (if present) |
| RAM | 0 MB or 4 MB Standard on Motherboard 32 MB or 36 MB Maximum on Motherboard 4 GB Maximum addressable |
| Speaker | Piezoelectric soldered on motherboard |
| UART Compatibility | Compatible with the 16C450 UART |
| Video | Built in Headland Technologies controller |
| Network Certification | |
| PB410SX-25 | W-636 |
| PB410SX-33 | W-631 |
| PB420SX-25 | W-601 |
| PB420DX-33 | W-609 |
| PB420DX2-66 | F-1523 |
| PB420TSX-33 | F-1648 |
| PB420TDX-33 | Workstation/Server |
| PB420TDX2-66 | F-1598 |