Digital video recorders (DVRs) Comparison: Sony, Digital Express (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Channels |
4
|
4
|
4
|
4
|
| Monitor Outputs |
1
|
2
|
2
|
2
|
| Alarm I/O |
8 in, 8 out
|
--
|
--
|
--
|
| Storage Capacity GB |
250
|
500
|
120
|
500
|
| Image per second (IPS) |
30 fps
|
25
|
25
|
100
|
| Compression Type |
MPEG-4, JPEG
|
MPEG, JPEG, H.263
|
MPEG, JPEG, H.263
|
MPEG, JPEG, H.263
|
| Signal Mode |
PAL/NTSC
|
PAL
|
PAL
|
PAL
|
| External Storage |
RAID
|
--
|
--
|
--
|
| Audio Recording and Properties |
Mini jack x1(front), x 1(rear); L/R x1 stereo pair
|
--
|
--
|
--
|
| Resolution |
--
|
768 x 576
|
768 x 576
|
768 x 576
|
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