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Series 4 Data Transfer Units

Product overview

L3Harris’ Series 4 Data Transfer System (DTS) provides a compact, self-contained system to store and retrieve data from removable 2.5-inch flash disks over either a USB or SATA interface. It is designed to meet the most demanding MIL-STD-810 and RTCA DO-160 environments and provides up to a maximum capacity of 8 TB of storage.

Key Features

Versatile, interchangeable data, easily transportable

The lightweight, compact DZUS-mount Series 4 DTS unit features multiple removable 8 TB SATA flash disks that can be easily transported and used interchangeably with any other Targa Series 4 NAS System. In addition to loading/retrieving data, Series 4 NAS DTU servers allow any network device to access the mission, map, and maintenance data on removable solid-state flash Data Transfer Devices (DTDs). The standard Series 4 NAS DTU comes with one or two DTDs for a maximum capacity of 2 TB. Each compact DTD weighs only 500 grams, is small enough to fit in a shirt pocket, and built to withstand extremes in temperature, shock and vibration.


Optional ‘Data at Rest’ encryption

The compact, self-contained system supports “Data at Rest” encryption via an optional on-chip encryption accelerator supporting 128/192/256 bit AES encryption. Additional features include a sophisticated key management scheme as well as the ability to have multiple independent encryption partitions per disk.

Product specifications






DTU40/SA-60-2 DTU40/SA-40-2 +28 VDC Panel-Mount
DTU40/SA-61-2 DTU40/SA-41-2 +5 VDC Panel-Mount
GSU49/SA-60-0 GSU49/SA-40-0 110 to 220 VAC Desktop
DTD Part Numbers DTD40/SAn-cccG-2
n = Disk ID | ccc = Capacity | eg: DTD40/SA9-60G-2
DTD Capacities (SA3B) SLC Nand, -40 to +85C, w/Sanitize & Mil Erase: 60, 120, 240, 480 GB
(SA11) SLC Nand, -40 to +85C, w/Key Change & Secure Erase: 64, 128, 256, 512 GB
(SA12) TLC Nand, 0 to +70C: 960, 1920, 3840, 7600 GB
(SA13) TLC Nand, -40 to +85C, Secure Erase: 960, 1920, 3840, 7600 GB
e.g., DTD40/SA11-64G-2 = SLC 64GB
Input Power: +28 VDC
+ 5 VDC
RTCA D0-160, Cat. Z, 7.5 W max
-3% to +5%, 1.5 A max
MTBF 35,000 hrs. (preliminary)  
Form Factor K=4 per MS 25221C K=5 per MS 25221C
Unit Case 6.5 in. x 5 in. x 1.4 in. (L x W x H) 6 6.5 in. x 5 in. x 1.8 in. (L x W x H)
Front Panel 5.75 in. x 1.5 in. (W x H) 5.75 in. x 1.9 in. (W x H)
Weight 875 g max 975 g max
Cable Length 10 ft. max 3 ft. max
Mounting Considerations Industry standard, all orientations Industry standard, all orientations
Temperature Operating: -40 ºC to +71 ºC
Storage: -55 ºC to +85 ºC
MIL-STD-810E, Method 501.3
MIL-STD-810E, Method 502.3
Altitude 50,000 ft. MIL-STD-810E, Method 500.3
Humidity 10 to 100% condensing RTCA DO-160D, Sec. 6, Cat. B
Shock Operating 20 g, 9 msec, ½ sine MIL-STD-810E, Method 516.4
Crash Hazard Operating 40 g, 9 msec, ½ sine MIL-STD-810E, Method 516.4
Vibration PSD 0.04 g2/Hz, 5 to 2000 Hz MIL-STD-810E, Method 514.4, Cat. 10
Waterproof RTCA DO-160D, Sec. 10, Cat. W 975 g max
Sand & Dust RTCA DO-160D, Sec. 12, Cat. D 3 ft. max
Salt Spray RTCA DO-160D, Sec. 14, Cat. S  
EMI MIL-STD-461 — CE102, CS06, CS101, CS114, RE102, RS103 MIL-STD-461 — CE102, CS06, CS101, CS114, RE102, RS103

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For product support and to gain access to the latest technical publications, service bulletins and other pertinent information about your data storage units, contact technical support.

Email: [email protected]
Phone: +1 (613) 727-9876

Cage Code/Federal Supply Code: L1764

Facility/Shipping/Mailing Address:
5353 52nd Street, S.E.
Grand Rapids, MI 49512-9704
Main Phone Line: +1 (616) 949-6600
Fax: +1 (616) 977-6898

Repair and Overhaul Administration:
Email: [email protected]
Phone: +1 (613) 727-9876
Fax: +1 (613) 727-1705


  • Series 4 DTU Brochure