| PartNumber | AP-ISD004GCA-1FTM | AP-ISD004GCA-1GTM | AP-ISD004GCA-1ATM |
| Description | Memory Cards Industrial SD H1-M MLC 4GB | Memory Cards Industrial SD H1-M MLC 4GB 15nm | Memory Modules Memory Cards Industrial SDHC H1-M 4GB |
| Manufacturer | Apacer | Apacer | Apacer Memory America |
| Product Category | Memory Cards | Memory Cards | Memory Cards |
| Product | SD Cards | SD Cards | SD Cards |
| Configuration | MLC | MLC | - |
| Memory Size | 4 GB | 4 GB | 4GB |
| Active Mode Current | 145 mA | - | 55 mA |
| Operating Supply Voltage | 3.3 V | - | 3.3 V |
| Minimum Operating Temperature | - 25 C | - | - 25 C |
| Maximum Operating Temperature | + 85 C | - | + 85 C |
| Dimensions | 24 mm x 32 mm x 2.1 mm | - | 32 mm x 24 mm x 2.1 mm |
| Length | 32 mm | - | - |
| Packaging | Tray | Tray | Tray |
| Thickness | 2.1 mm | - | - |
| Width | 24 mm | - | - |
| Brand | Apacer | Apacer | - |
| Product Type | Memory Cards | Memory Cards | - |
| Factory Pack Quantity | 50 | 50 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| RoHS | - | Y | - |
| Series | - | H1-M | H1-M |
| Technology | - | - | MLC |
| Operating Temperature | - | - | -25°C ~ 85°C |
| Memory Type | - | - | SD |
| Speed | - | - | - |
| Sustained Read | - | - | 35 MB/s |
| Sustained Write | - | - | 10 MB/s |