Memory Upgrade Kit: includes 256MB memory (1 X 256MB SODIMM) to upgrade a 128MB OC3/OC12-ATM line module to 256MB.

ATM-based Combo card: Ships with 256MB of memory. Requires the 2xATM/1xGE IOA (ERX-2OC3GE-IOA) with pluggable SFP adapters. Line module redundancy is not supported.

Power Distribution Module for the ERX-1440.

Service Module with 256MB: provides all of the capabilities of the existing Tunnel Service with increased session scaling (via the 256MB) and performance enhancements for increased throughput. Also includes support for NAT and firewall capabilities.

E320 100Gb switch fabric module (SFM).

E320 100Gb switch route processor (SRP).

E320/E120 10G Access line module (LM10A).  Support for Ethernet, and Redundancy IOAs only (ES2-GE8S1-IOA, ES2-REDUNDS1-IOA, ES2-10GES2-IOA, ES2-GE20S3-IOA)

E320/E120 10G Advanced Services Line Module. Deployable as a high scale access or uplink module. Support for Ethernet, and Redundancy IOAs only (ES2-GE8S1-IOA, ES2-REDUNDS1-IOA, ES2-10GES2-IOA, ES2-GE20S3-IOA)

2-port, wire-rate, 10GE IOA for use with the E320 10Gb line modules (ES2-10GUPS2-MOD, ES2-10GACS3-MOD, ES2-10GACS4-MOD). This IOA has 2 physical ports for 1+1 port-level redundancy and uses pluggable transceivers (XFPs).

10Gb uplink line module.

E120 fan tray.

E120 120Gb switch fabric module (SFM). Supported in the E120 chassis only.

E120 120Gb switch route processor (SRP). Supported in the E120 chassis only

E320 (half-height) 2-port OC12/STM4 ATM IOA (requires pluggable OC12/STM4 SFP transceivers).

E320 (half-height) 2-port OC12/STM4 POS IOA (requires pluggable OC12/STM4 SFP transceivers).

E320 320Gb switch fabric module (SFM). Supported in the E320 and E120 chassis

E320 320Gb switch route processor (SRP). Supported in the E320 and E120 chassis

E320 4G line module (LM4)

E320 (half-height) 8-port OC3/STM1 ATM IOA (requires pluggable OC3/STM1 SFP transceivers).

Air filter for the E320