DOCSIS
Throughput
Maximum raw throughput including overhead (maximum payload throughput after overhead). Tables assume 256-QAM modulation for downstream and 64-QAM for upstream on DOCSIS 3.0, and 4096-QAM modulation for OFDM/OFDMA (first downstream/upstream methods) on DOCSIS 3.1, although real-world data rates may be lower due to variable modulation depending on SNR.

DOCSIS

Section Title: Throughput
Table Section Text: Maximum raw throughput including overhead (maximum payload throughput after overhead). Tables assume 256-QAM modulation for downstream and 64-QAM for upstream on DOCSIS 3.0, and 4096-QAM modulation for OFDM/OFDMA (first downstream/upstream methods) on DOCSIS 3.1, although real-world data rates may be lower due to variable modulation depending on SNR.

Version	Downstream	Upstream

Channel configuration	DOCSIS throughput in Mbps	EuroDOCSIS throughput in Mbps	Throughput in Mbps

Minimum selectable number of channels	Minimum number of channels that hardware must support	Selected number of channels	Maximum number of channels	Minimum selectable number of channels	Minimum number of channels that hardware must support	Selected number of channels	Maximum number of channels

1.x	1	1	1	1	42.88 (38)	55.62 (50)	1	1	1	1	10.24 (9)

2.0	1	1	1	1	42.88 (38)	55.62 (50)	1	1	1	1	30.72 (27)

3.0	1	4	m	No maximum defined	m × 42.88 (m × 38)	m × 55.62 (m × 50)	1	4	n	No maximum defined	n × 30.72 (n × 27)

3.1	1 (m1 = 3) OR 1 (m2 = 1)	2 (m1 = 64) AND 24 (m2 = 24)	m1 m2	No maximum defined	m1 × 64.32 (m1 × 54) m2 × 42.88 (m2 × 38)	N/A	1 (n1 = 1) AND/OR 1 (n2 = 1)	2 (n1 = 32) AND 8 (n2 = 8)	n1 n2	No maximum defined	n1 × 64.32 (n1 × 54) n2 × 30.72 (n2 × 27)

Sentence(s)

The first three versions of the DOCSIS standard supported a downstream throughput with 256-QAM of up to 42.88 Mbit/s (38 Mbit/s after overhead), or 55.62 Mbit/s for EuroDOCSIS (50 Mbit/s after overhead).

final_sentence: The first three versions of the DOCSIS standard supported a downstream throughput with 256-QAM of up to 42.88 Mbit/s (38 Mbit/s after overhead), or 55.62 Mbit/s for EuroDOCSIS (50 Mbit/s after overhead).