Product Description : 
Overview
The SRX4000 line of services gateways brings you integrated security and networking features for protecting next-generation services and applications. These gateways are designed for small to medium-sized enterprise campuses and data centers. They can also serve as secure routers and VPN concentrators, as well as offer SD-WAN 
capabilities.

SRX4000 Services Gateways set a new benchmark for price and performance while enabling secure migration into hybrid clouds.

The SRX4000 line includes two models, each of which delivers market-leading performance, scalability, and security services in a compact, 1 U platform:

The SRX4100 supports up to 20 Gbps IMIX and 5 Gbps next-generation firewall performance
The SRX4200 supports up to 40 Gbps IMIX and 10 Gbps next-generation firewall performance

Advanced Threat Protection
Advanced threat protection includes malware protection with Juniper Sky ATP, security intelligence via Spotlight Secure, policy enforcement based on GeoIP data, UTM (including IPS, application security with AppSecure, user role-based firewall controls, antivirus, antispam, and Web filtering), NAT, and QoS.