MESOS M4240H High-Density 4U Disk Expansion Unit High Density and Flexibility M4240H is the high density SASII/SATAIII 6Gb/s 4U-24 bay 3.5”/2.5” JBOD. M4240H delivers a

High-Density 4U Disk Expansion Unit
High Density and Flexibility
M4240H is the high density SASII/SATAIII 6Gb/s 4U-24 bay 3.5”/2.5” JBOD. M4240H delivers a high-performance, high-availability, high-serviceability & cost-effective disk expansion solution to meet the enterprise class demand in solving the challenges of today’s fast growing of storage capacity. 
High Redundancy and Serviceability
M4240H supports SAS full duplex access capabilities with dual SAS Interface Module, with three host 6Gb/s SAS ports in each SAS Interface Module can provide 3 servers connect to M4240H simultaneously to share the pooled storage. 
High Scalability and Capacity
With total 3 sets of M4240H daisy chained, the solution can scale up to 72 disk drives, equipped with 4TB drives, can support up to 288TB in a single storage farm which can meet most of the application capacity demand in Small-and-Medium Business (SMB) and Enterprise environment.
About QCT

QCT (Quanta Cloud Technology) is a global datacenter solution provider extending the power of hyperscale datacenter design in standard and open SKUs to all datacenter customers.  Product lines include servers, storage, network switches, integrated rack systems and cloud solutions, all delivering hyperscale efficiency, scalability, reliability, manageability, serviceability and optimized performance for each workload.  QCT offers a full spectrum of datacenter products and services from engineering, integration and optimization to global supply chain support, all under one roof.  The parent of QCT is Quanta Computer Inc., a Fortune Global 500 technology engineering and manufacturing company. 

Form Factor
4U Rack Mount
w/o Cable ARM (WxHxD, inch)
17.52 x 6.88 x 21.93
w/o Cable ARM (WxHxD, mm))
445 x 174.75 x 557.02
w/o HDD
64.53 lb. (29.33kg)
Controller Module
(2)Hot-swappable SAS Interface Modules (SIM)
External I/O Ports
(3)6Gb/s mini-SAS ports per SIM
(24)3.5" and 2.5" SASII and SATAII hot-pluggable HDDs with
dual-port access. (SATA drive requires optional Active-Active MUX)
Management Port
(1)RJ11 management port
Expansion Support
Scalable up to (72)HDDs in cascading (3) M4240H
Power Supply
O(2)760W redundant power supplies, input requirements 88 - 264V AC
Total 2+2 redundant in the system, (2)fans in each power supply module
LED Indicators
Power LED
System ID/ Status LED
HDD Active and ID/ Status LED
Operating Environment
Operating Temperature: 0°C to 40°C (32°F to 104°F)
Humidity: 50% to 93% relative humidity
Altitude: 40°C / 3200 Meter
Shock : 31G@2.6ms, half-sine shock
Operational Vibration: 0.26Grms random vibration 5~350Hz
Compatible Components List 1
Title Version Date Size
M4240H CCL 2015/07/13 8.43KB
Datasheet 3
Title Version Date Size
MESOS M4240H v1 2014/06/17 181KB
QCT Mezzanine Card Portfolio v1 2015/03/09 379.75KB
QCT Product Portfolio v5.0 2015/06/18 271.97KB
Safety information 5
Title Version Date Size
Safety Information_EN for UL 2014/06/18 295KB
Safety Information_French for CUL. 2014/06/18 404KB
Safety Information_Russian_Language v1 2014/06/18 556KB
Safety Information_Simplify Chinese for CCC. 2014/06/18 756KB
Safety Information_Tranditional Chinese for BSMI. 2014/06/18 619KB
User manual 2
Title Version Date Size
MESOS Storage M4240H FW update SOPUG 1.0 2014/06/18 937KB
MESOS Storage M4240H manualUG 1.0.0 2014/06/18 329KB
Expander 2
Title Version Date Size
M4240H EXPANDER 1734 2014/08/28 680.71KB
M4240H EXPANDER 1733 2014/03/27 680.35KB

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High-Density 4U Disk Expansion Unit

  • High Reliability, Serviceability and Availability
  • Cost-effectiveness by Shared Architecture
  • High Density and Flexibility
  • £0.00

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