Null modem, 9 pin D male to female adaptor |  |
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 | A 9 way D male plug to a 9 way D female socket null modem coupler. |
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| Null modem, 9 pin D male to female adaptor | | £3.24 ( £2.76 excl. VAT ) | | |
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Null modem, 25 pin D male plug to female socket adaptor | |
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 | A 25 way D plug to socket null modem coupler. |
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| Null modem, 25 pin D male plug to female socket adaptor | | £2.89 ( £2.46 excl. VAT ) | | |
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Null modem, 25 pin D male to male adaptor | |
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 | A 25 way D plug to plug null modem coupler. |
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| Null modem, 25 pin D male to male adaptor | | £1.81 ( £1.54 excl. VAT ) | | |
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Null modem, 25 pin D female to female adapter | |
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 | A 25 way D socket to socket null modem coupler. |
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| Null modem, 25 pin D female to female adapter | | £1.81 ( £1.54 excl. VAT ) | | |
