| PartNumber | 20-101-1257 | 20-101-1256 | 20-101-1259 |
| Description | Single Board Computers BL4S150 1M with XBee | Single Board Computers BL4S110 512K | Single Board Computers BL4S210 (RCM4010-based) |
| Manufacturer | Digi International | Digi International | Digi International |
| Product Category | Single Board Computers | Single Board Computers | Single Board Computers |
| RoHS | Y | Y | Y |
| Form Factor | Compact Form Factor | Compact Form Factor | Compact Form Factor |
| Processor Brand | Rabbit Semiconductor | Rabbit Semiconductor | Rabbit Semiconductor |
| Processor Type | Rabbit 4000 | Rabbit 4000 | Rabbit 4000 |
| Frequency | 40 MHz | 40 MHz | 58.98 MHz |
| Maximum RAM Capacity | 1.5 MB | 1 MB | 512 kB |
| Installed RAM | 1.5 MB | 1 MB | 512 kB |
| Operating Supply Voltage | 9 V to 36 V | 9 V to 36 V | 9 V to 36 V |
| Interface Type | Ethernet, Serial, Zigbee | Ethernet, Serial | Ethernet, Serial |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Dimensions | 146 mm x 96 mm x 16 mm | 146 mm x 96 mm x 16 mm | 146 mm x 96 mm x 24 mm |
| Description/Function | Single board computer BL4S150 | Single board computer BL4S110 | Single board computer BL4S210 |
| Flash | 2 MB | 1 MB | 512 kB |
| Memory Type | Serial Flash, SRAM | Serial Flash, SRAM | Parallel Flash, SRAM |
| Power Consumption | 2 W | 2 W | 4.5 W |
| Brand | Digi International | Digi International | Digi International |
| Battery Backup Switching | Backup Battery | Backup Battery | Backup Battery |
| Number of Cores | 1 Core | 1 Core | 1 Core |
| Product Type | Single Board Computers | Single Board Computers | Single Board Computers |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Computing | Computing | Computing |
| Packaging | - | Bulk | - |