Model	NK-3550	NK-5600	NK-5900	NK-7210	NK-7300	NK-8210	NK-8220
Throughput	200Mbps	500Mbps	800Mbps	1.5Gbps	2Gbps	2.5Gbps	5Gbps
Latency	< 200μsec	< 200μsec	< 200μsec	< 200μsec	< 200μsec	< 200μsec	< 200μsec
Connection Rate	12,000	12,000	12,000	22,000	30,000	30,000	30,000
Concurrent Sessions	512K+	1M+	1M+	1M+	2M+	2M+	2M+
L4 ACL	4096	4096	4096	4096	4096	4096	4096
Security Signature	2300+	2300+	2300+	2300+	3000+	3000+	3000+
10/100/1000 Copper	5	5	5	5	7	7	5
Mini-GBIC	N/A	N/A	4	4	8	8	8
10G	N/A	N/A	N/A	N/A	N/A	2	2/4*
IPS Segments	2	2	4	4	7	8	8
IDS Port	5	5	9	9	15	17	15/17**
Management Interface	1	1	1	1	1	1	1
Traffic Mirroring	1	1	1	1	1	1	1
L2 Fallback	1 pair	2 pair	2 pair	2 pair	3 pair	3 pair	2 pair
Zero Power Bypass	1 pair	2 pair	2 pair	2 pair	3 pair	3 pair	2 pair
Link Fault Pass Through	Yes	Yes	Yes	Yes	Yes	Yes	Yes
High Availability	AA/AS	AA/AS	AA/AS	AA/AS	AA/AS	AA/AS	AA/AS
Form Factor	1U	1U	1U	2U	2U	2U	2U
H/W/D (mm)	44/443/381	44/443/381	44/443/381	88/431/392.7	88/431/392.7	88/433/512	88/433/512
Weight (kg)	4.94	4.94	4.94	12.5	12.5	13	13
Redundant Power Supplies	N/A	N/A	N/A	Yes	Yes	Yes	Yes
Amperage (A)	5/3	5/3	5/3	8/5	8/5	8/5	8/5
Input Voltage (V)	AC 100~240	AC 100~240	AC 100~240	AC 100~240	AC 100~240	AC 100~240	AC 100~240
Frequency (Hz)	47~63	47~63	47~63	47~63	47~63	47~63	47~63
* Built-in 2 x 10G interface module. The 4 x 10G interface module is optional. ** Depends on the type of 10G interface module.