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2.

  Package Checklist

1. 

 Overview

3.

  Panel Layout

NA255A

The easy, cost-effective Netstor PCIe Gen3 to GPU desktop expansion 
enclosure TurboBox NA255A features easy plug and play installation, 
containing PCIe 3.0 ×16 host card, target card and data cable providing 
high-speed data rate up to 128Gbps. Through the TurboBox NA255A, 
all the PCIe slots on NA255A are available to the host PC, workstation, 
or Mac Pro.

Before the installation of this unit, verify the package contains the 
following items.

1. Power on/off button

2. Buzzer mute button

     Green – normal
     Red – over-temperature (higher than 55

)

3. Fan LED

     Green – normal
     Red – fan failure (low frequency of RPM or stop)

4. Temperature LED

     Green – normal
     Red – over-temperature (higher than 55

)

5. Power switch
6. Power receptacle
7. Link status LED

     Gen3: constant green light
     Gen2: fast blinking green light (2 flashes/second)
     Gen1: slow blinking green light (1 flash/second)

8. Two external PCIe 3.0 ×8 connectors for host 
    connection (one port is etched with ×8 for 
    lane 1~8; the other port is etched with ×16 
    for lane 9~16)
9. PCIe slots
10. Thumbscrew to loosen/tighten the side door

Blue – power on

Note:

 Under powering on/off NA255A by manual mode, to 

power on/off the TurboBox NA255A, press the button for two 
seconds until the button shows blue light or off.

1. Slot 1 : PCIe ×16 connector (×16 signal); 
    target card already installed in it.
2. Slot 2 : PCIe ×16 connector (×8 signal)
3. Slot 3 : PCIe ×16 connector (×8 signal)
4. Slot 4 : PCIe ×16 connector (×8 signal)
5. Slot 5: PCIe ×16 connector (×8 signal)
6. Slot 6: PCIe ×4 connector (×4 signal)
7. Slot 7: PCIe ×4 connector (×4 signal)
8. 8* 6+2 pin PCIe power cables for graphics cards

External PCIe 3.0 to GPU Desktop Enclosure

4.

 

  Installation of PCIe Graphics/Add-On 

       Card and Connection

Before following the installation procedures, disconnect 

TurboBox NA255A from power source to prevent electric 

shock or damage to graphics/PCIe card. In order to 

correctly configure NA255A to work properly with different 

host PC or Workstation, the following jumper and switches 

may need to be adjusted.

PCIe 3.0 ×16 

host adapter card x 1

B

PCIe 3.0 ×8 cable 

(1.5 meter) x 2

D

Power cord × 1

E

PCIe 3.0 ×16 

target adapter card x 1 (Installed)

C

CD containing 

user manual x 1

F

Green IT makes 

             Green Earth

NetStor Technology Co. Ltd.

www.netstor.com.tw

NA255A Enclosure x 1

A

If any of the above items is missing or damaged, please notify your sales 
representative.

JP2

SW1-2

SW1

Function

Location

Function

Location

Function

Location

To set NA255A to Gen3 mode, place jumper 

over pin 1 and pin 2. To set NA255A to Gen2 

mode, NOT place jumper over pins. To set 

NA255A to Gen1 mode, place jumper over 

pin 2 and pin 3.

To set up connection between host and 

NA255A for ×8 or ×16. For ×16 connection, 

SW1-2 is ON. For ×8 connection, SW1-2 is 

OFF.

To set up connection between host and NA255A 

for ×8 or ×16. For ×16 connection, SW1 is OFF. 

For ×8 connection, SW1 is ON.

Jumper JP2 is located near slot 3 

on backplane

.

Switch SW1-2 is located near slot 5 

on backplane

.

Switch module SW1 is located on top-right 

position of host card 

(NP970A-H)

 and 

target card 

(NP970A-T)

.

1   2   3   4

10                      5  6  7  8     9

1

6

2

3

4

5

7

5

4

3

2

1

6

8

7

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