Product comparison · 2 isdn access devices

FRITZ! ISDN-Controller C4 vs FRITZ! RITZ!Card USB V2.1

4specifications compared
3differ
1identical
13known for one product only

Key differences

The FRITZ! RITZ!Card USB V2.1 has 225.6 Kbit/s more modem speed than the FRITZ! ISDN-Controller C4 (240 Kbit/s vs 14.4 Kbit/s). The FRITZ! RITZ!Card USB V2.1 has 48 MB more minimum RAM than the FRITZ! ISDN-Controller C4 (64 MB vs 16 MB).

Modem speed
- ISDN-Controller C4:14.4 Kbit/s
- RITZ!Card USB V2.1:240 Kbit/s
Minimum RAM
- ISDN-Controller C4:16 MB
- RITZ!Card USB V2.1:64 MB

Side by side

Differences highlightedShow differences only

Comparison of ISDN-Controller C4, RITZ!Card USB V2.1
17 specifications	A FRITZ! ISDN-Controller C4 View product	B FRITZ! RITZ!Card USB V2.1 View product
Technical details1 differ
Compatible operating systemsDiffers	Microsoft Windows 2000/NT4.0/Linux/Novell NetWare 4.x	Microsoft Windows XP, Windows Me,Windows 2000, Windows 98
Interface typeKnown for one	PCI	Unknown — not stated by the source
Power consumption (typical)Known for one	3 W	Unknown — not stated by the source
Supported data transfer ratesKnown for one	128 Kbit/s	Unknown — not stated by the source
Cables includedKnown for one	Unknown — not stated by the source	USB
Ports & interfacesidentical
Data link protocolsKnown for one	ISDN	Unknown — not stated by the source
Modem1 differ
Modem speedDiffers	14.4 Kbit/s	240 Kbit/s
Transmission methodKnown for one	Full-duplex	Unknown — not stated by the source
Supported protocolsKnown for one	ITU V.21, ITU V.22, ITU V.22bis, ITU V.29, ITU V.32, ITU V.32bis, ITU V.34, ITU V.17, ITU V.27ter, Hayes AT command set, V.110 (I.470), V.120 (I.464), X.75, ISO8208, ITU T.70NL, ITU T.90NL	Unknown — not stated by the source
System requirements1 differ
Minimum RAMDiffers	16 MB	64 MB
Minimum processorKnown for one	StrongARM SA-110 233 MHz	Unknown — not stated by the source
Weight & dimensionsidentical
WeightKnown for one	Unknown — not stated by the source	452 g
DepthKnown for one	Unknown — not stated by the source	230 mm
HeightKnown for one	Unknown — not stated by the source	65 mm
WidthKnown for one	Unknown — not stated by the source	155 mm
Certificatesidentical
CertificationKnown for one	Unknown — not stated by the source	TÜV, CE

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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