| Manufacturer | Part Number | Description |
|---|---|---|
| 49LF004B | SST49LF004B | |
| 49LF004A | SST49LF004A | |
AMIC |
49LF004 | A49LF004 |
| SST49LF004 | 4 Megabit Firmware Hub | |
| 49LF004B | SST49LF004B | |
AMIC Technology |
A49LF004 | 4 Mbit CMOS 3.3Volt-only Firmware Hub Flash Memory |
| SST49LF004B | 4 Mbit LPC Firmware Flash | |
| SST49LF004A | 2 Mbit / 3 Mbit / 4 Mbit / 8 Mbit Firmware Hub |