diff --git a/Hardware/readme.md b/Hardware/readme.md
index 68be8588f17dc0c17ae18e15d1afc3b3d48e953a..eec8a63c850579c253240d837b6713e635dfd631 100644
--- a/Hardware/readme.md
+++ b/Hardware/readme.md
@@ -99,9 +99,10 @@ We need to drill two holes to the lids. The hole at front lid will be used for t
 |Item No. | Name                                     | Part name                                     | Est. cost per Pc. [€]  | Amount   | Total cost [€]  | 
 |-------- | -------------------                      | ---------                                     | :--------------------: | :------: | :------------:  |
 |2.1      | Semi-rigid coaxial wire                  | [El Spec group, 14940                  ][50]  | Please ask to manufac. | 2        | -               |
-|2.2      | Heat-shrink tube                         | [El Spec group, 14940                  ][51]  | Please ask to manufac. | 2        | -               |
+|2.2      | Heat-shrink tube                         | Not specified                                 | -                      | -        | -               |
 |2.3      | [PLA, 3D printing                  ][bc] | [Ultimaker, Ultimaker tough PLA        ][52]  | 47.00                  | 1        | 47.00           |
 |2.4      | [PVA, 3D printing (sup. material)  ][bd] | [Ultimaker, Ultimaker natural PVA      ][53]  | 105.00                 | 1        | 105.00          |
+|2.5      | [Extension cable                   ][be] | [Amphenol RF, 135101-01-24-00          ][54]  | 26.00                  | 1        | 26.00           |
 
 
 [//]: <> (References for the figures)
@@ -135,6 +136,7 @@ We need to drill two holes to the lids. The hole at front lid will be used for t
 
 [bc]:  /Hardware/Lead_Trajectories/Datasheets/UM220509-Tough-PLA-TDS-RB-v2.10.pdf "Open datasheet"
 [bd]:  /Hardware/Lead_Trajectories/Datasheets/UM200310-Ultimaker_PVA.pdf          "Open datasheet"
+[be]:  /Hardware/Lead_Trajectories/Datasheets/SMA_cable.pdf                       "Open datasheet"
 
 [//]: <> (References for external links)
 
@@ -164,6 +166,7 @@ We need to drill two holes to the lids. The hole at front lid will be used for t
 [50]: https://www.elspecgroup.de/products/semi-rigid/standard-cable                                                                 "Open manufacturer website"
 [52]: https://ultimaker.com/materials/tough-pla                                                                                     "Open manufacturer website"
 [53]: https://ultimaker.com/materials/pva                                                                                           "Open manufacturer website"
+[54]: https://www.amphenolrf.com/135101-01-24-00.html
 
 [1a]: https://software-dl.ti.com/lprf/simplelink_cc26x2_latest/docs/ble5stack/ble_user_guide/html/ble-stack-oad/index.html "See documentation"
 [1b]: https://e2e.ti.com/support/wireless-connectivity/zigbee-thread-group/zigbee-and-thread/f/zigbee-thread-forum/843250/cc2652r-cc2652-internal-dc-dc-converter-vs-global-ldo "See discussion"