Is There a Limit on the eSATA External HDD on the DL850?

The maximum compatible eSATA external HDD size is 1.5 TB. The external HDD recording function performs the same as the internal HDD. The actual data transfer for internal and external HDD is 3.2 MB/s.

Related Products & Solutions

Data Acquisition (DAQ)

Data acquisition (DAQ) is the measurement, recording, analyzing, and presentation of real world phenomena. It includes electrical measurements such as voltage, current, power as well as measurements through sensors and transducers including temperature, pressure, strain, vibration, and more.

High Speed Data Acquisition

Yokogawa high speed data acquisition systems deliver industry leading isolation, bit resolution, sampling rate, and memory depth, with independent channel hardware and easy to use software.


Oscilloscopes are a common type of test instrument used to capture, analyze, and troubleshoot electrical or real world physical signals. Oscilloscopes observe the change of electrical signals over time, continuously graphed on a display as voltage or amplitude vs. time.


A ScopeCorder is an instrument combining a mixed signal oscilloscope and portable data acquisition recorder into a modular platform designed to capture both high-speed transients and low speed trends. Yokogawa’s ScopeCorder product family provides flexible and high-performance multi-channel test instruments by combining a variety of signal conditioning input modules, on-board calculations, and deep data acquisition storage into a off-the-shelf data acquisition solution.