The below specs apply to all PS4210 series models:

Storage Controller

Dual controllers with 16GB non-volatile memory (8GB per controller)with up to 32GB non-volatile memory in a group of 2 arrays

Network Interfaces

Management network: One 100BASE-TX per controller; 10GbE connectivity

Interface ports

Two 10GBASE-T with RJ45 or 2 x 10GbE SFP+ for fibre or twin-ax copper cabling

Snapshots

128 per volume / up to 2,048 total per group

Volume connections per PS series group

Up to 512 per pool / 1024 per group

Host Protocol

Any standards-compliant iSCSI initiator

Operating systems and hypervisors

Microsoft® Windows Server® including Hyper-V®
VMware® ESX Server
Red Hat® Enterprise Linux® (RHEL)
SUSE® Enterprise Linux® (SLES)
Oracle® Linux
Citrix® XenServer®

For a complete list of supported OS versions including software initiators, NICs/CNAs, and HBAs, please see the Dell Storage Compatibility Matrix: http://en.community.dell.com/dell-groups/dtcmedia/m/mediagallery/20438558.

TCP Network Support

IPv4, IPv6 compliant. USGv6 certified.

Expansion option

Can be combined with other PS Series arrays in the same SAN group, online with a maximum of 16 total arrays per group that can support up to 2 PS4xxx arrays and 14 PS6xxx arrays. A maximum of two arrays can be in a group of PS4xxx series with up to 144TB. Additionally, PS and SC Series offer common management and cross-platform replication capabilities between arrays, providing PS Series customers the flexibility to add SC Series arrays to their environment, if and when they choose.

Reliability

Redundant hot-swappable controllers with vertical port sharing
Hot-swappable disks and power supplies

Enclosure Monitoring System 

CHAP authentication; Access control lists for iSCSI as well as Access Control Policies; Access control for management interfaces including Active Directory, LDAP, or RADIUS support

Management Interfaces

Dell Storage Manager (DSM): Allows you to perform day-to-day tasks across SC and PS Series arrays from a single management interface
PS Series Group Manager
SAN Headquarters multi-group performance and event monitoring tool 
Serial console 
Ability to configure a separate management network 
SNMP, telnet, SSH, HTTP, Web (SSL), host scripting
Multi-administrator support

Security

CHAP authentication 
Access control for iSCSI 
Access control for management interfaces including RADIUS support

Notification Methods

SNMP traps, email, syslog

Power

AC voltage: 100-240 VAC +10% single phase
700W (max, total), +5V up to 155W; +12V up to 624W; +5Vsb up to 10W
Frequency: 50/60 Hz
Power factor: 0.98 (minimum)
Power supplies: Dual 700W

Environmental Operating Conditions

Temperature range: 5° to 40°C (41° to 104°F)
Storage temperature: –40° to 65°C (–40° to 149°F)
Altitude: For altitudes above 2950 feet, the maximum operating temperature is derated 1ºF/550 ft.
Operating Relative humidity: 20% to 80% (noncondensing) with a maximum humidity gradation of 10% per hour
Operational shock: Half-sine shock 31G +/- 5% with a pulse duration of 2.6ms +/- 10% in operational orientations only
Operating Vibration: 0.26 Grms (5 to 350 Hz) for 5 minutes in operational orientations
Acoustics Category 4: <=7.2 bels at 23C +/- 2C
Air Quality: Airborne contaminant level of G1 or lower as defined by ISA-S71.04-1985

Physical

Height: 2U/8.68 cm (3.41 in) 
Width: 44.63 cm (17.57 in)
Depth: 59.4 cm (23.4 in) 
Weight: 29.2 Kg (64.4 lb)

Dell support and optional storage service offerings

Dell ProSupport Plus for critical systems or Dell ProSupport for premium hardware and software support are recommended to provide you the right support services for your PS Series solution. Contact your Dell representative today for more information.