Winkelwagen - Dyronics Nederland

Product	Productnaam	Prijs	Aantal	Subtotal	Artikel verwijderen
Philips \| 27E1N1300A/00	Philips \| 27E1N1300A/00	€185.95	Philips \| 27E1N1300A/00 aantal	€371.90	×
32 GB \| Corsair \| CMK32GX5M2B6800C40	32 GB \| Corsair \| CMK32GX5M2B6800C40	€129.95	32 GB \| Corsair \| CMK32GX5M2B6800C40 aantal	€779.70	×
Iiyama \| XCB3494WQSN-B5	Iiyama \| XCB3494WQSN-B5	€369.95	Iiyama \| XCB3494WQSN-B5 aantal	€1,109.85	×
32 GB \| Corsair \| CMH32GX5M2B6400Z32	32 GB \| Corsair \| CMH32GX5M2B6400Z32	€146.95	32 GB \| Corsair \| CMH32GX5M2B6400Z32 aantal	€146.95	×
16 GB \| Corsair \| CMK16GX4M2D3600C18	16 GB \| Corsair \| CMK16GX4M2D3600C18	€38.95	16 GB \| Corsair \| CMK16GX4M2D3600C18 aantal	€38.95	×
Iiyama \| XU2493HS-B6	Iiyama \| XU2493HS-B6	€110.95	Iiyama \| XU2493HS-B6 aantal	€221.90	×
48 GB \| G.Skill \| F5-6400J3239F24GX2-RS5K	48 GB \| G.Skill \| F5-6400J3239F24GX2-RS5K	€181.95	48 GB \| G.Skill \| F5-6400J3239F24GX2-RS5K aantal	€1,637.55	×
Iiyama \| GCB3481WQSU-B1	Iiyama \| GCB3481WQSU-B1	€355.95	Iiyama \| GCB3481WQSU-B1 aantal	€355.95	×
Samsung \| LS32DM700UUXEN	Samsung \| LS32DM700UUXEN	€269.95	Samsung \| LS32DM700UUXEN aantal	€269.95	×
AOC \| Q27U3CV	AOC \| Q27U3CV	€362.95	AOC \| Q27U3CV aantal	€725.90	×
16 GB \| Corsair \| CMG16GX4M1D3600C18	16 GB \| Corsair \| CMG16GX4M1D3600C18	€39.95	16 GB \| Corsair \| CMG16GX4M1D3600C18 aantal	€39.95	×
Iiyama \| XUB3493WQSU-B5	Iiyama \| XUB3493WQSU-B5	€349.95	Iiyama \| XUB3493WQSU-B5 aantal	€699.90	×
Samsung \| LS43DM702UUXEN	Samsung \| LS43DM702UUXEN	€477.95	Samsung \| LS43DM702UUXEN aantal	€955.90	×
32 GB \| G.Skill \| F5-7800J3646H16GX2-TZ5RK	32 GB \| G.Skill \| F5-7800J3646H16GX2-TZ5RK	€144.95	32 GB \| G.Skill \| F5-7800J3646H16GX2-TZ5RK aantal	€144.95	×
Iiyama \| XU2491H-B1	Iiyama \| XU2491H-B1	€98.95	Iiyama \| XU2491H-B1 aantal	€98.95	×
Samsung \| LS25BG400EUXEN	Samsung \| LS25BG400EUXEN	€199.95	Samsung \| LS25BG400EUXEN aantal	€199.95	×
LG \| 27BQ65UB-B.AEU	LG \| 27BQ65UB-B.AEU	€395.95	LG \| 27BQ65UB-B.AEU aantal	€2,375.70	×
Samsung \| LS32DM700UUXEN	Samsung \| LS32DM700UUXEN	€260.95	Samsung \| LS32DM700UUXEN aantal	€260.95	×
16 GB \| Team Group \| TF3D416G3600HC18JDC01	16 GB \| Team Group \| TF3D416G3600HC18JDC01	€50.95	16 GB \| Team Group \| TF3D416G3600HC18JDC01 aantal	€50.95	×
8 GB \| Corsair \| CMSX8GX4M2A2400C16	8 GB \| Corsair \| CMSX8GX4M2A2400C16	€28.95	8 GB \| Corsair \| CMSX8GX4M2A2400C16 aantal	€28.95	×
Iiyama \| TF2438MSC-B1	Iiyama \| TF2438MSC-B1	€506.95	Iiyama \| TF2438MSC-B1 aantal	€506.95	×
32 GB \| Corsair \| CMH32GX5M2X7000C34	32 GB \| Corsair \| CMH32GX5M2X7000C34	€162.95	32 GB \| Corsair \| CMH32GX5M2X7000C34 aantal	€162.95	×
16 GB \| Corsair \| CMK16GX4M2Z3600C18	16 GB \| Corsair \| CMK16GX4M2Z3600C18	€48.95	16 GB \| Corsair \| CMK16GX4M2Z3600C18 aantal	€48.95	×
32 GB \| G.Skill \| F4-3200C16D-32GIS	32 GB \| G.Skill \| F4-3200C16D-32GIS	€73.95	32 GB \| G.Skill \| F4-3200C16D-32GIS aantal	€73.95	×
AOC \| Q27U3CV	AOC \| Q27U3CV	€345.95	AOC \| Q27U3CV aantal	€691.90	×
Philips \| 27E1N1800A/00	Philips \| 27E1N1800A/00	€226.95	Philips \| 27E1N1800A/00 aantal	€453.90	×
Acer \| UM.QB7EE.G06	Acer \| UM.QB7EE.G06	€117.95	Acer \| UM.QB7EE.G06 aantal	€353.85	×
Acer \| UM.HX3EE.319	Acer \| UM.HX3EE.319	€434.95	Acer \| UM.HX3EE.319 aantal	€869.90	×
LC-Power \| LC-M39-QHD-165-C	LC-Power \| LC-M39-QHD-165-C	€428.95	LC-Power \| LC-M39-QHD-165-C aantal	€428.95	×
32 GB \| G.Skill \| F5-6800J3445G16GX2-TZ5RS	32 GB \| G.Skill \| F5-6800J3445G16GX2-TZ5RS	€144.95	32 GB \| G.Skill \| F5-6800J3445G16GX2-TZ5RS aantal	€144.95	×
Iiyama \| GCB3481WQSU-B1	Iiyama \| GCB3481WQSU-B1	€386.95	Iiyama \| GCB3481WQSU-B1 aantal	€386.95	×
8 GB \| Corsair \| CMSX8GX4M1A2666C18	8 GB \| Corsair \| CMSX8GX4M1A2666C18	€21.95	8 GB \| Corsair \| CMSX8GX4M1A2666C18 aantal	€21.95	×
Kingston \| KF436C18BB/16	Kingston \| KF436C18BB/16	€42.95	Kingston \| KF436C18BB/16 aantal	€42.95	×
16 GB \| G.Skill \| F4-3200C16D-16GVKB	16 GB \| G.Skill \| F4-3200C16D-16GVKB	€43.95	16 GB \| G.Skill \| F4-3200C16D-16GVKB aantal	€43.95	×
Acer \| UM.QB7EE.G05	Acer \| UM.QB7EE.G05	€144.95	Acer \| UM.QB7EE.G05 aantal	€144.95	×
32 GB \| G.Skill \| F5-7600J3646G16GX2-TZ5RS	32 GB \| G.Skill \| F5-7600J3646G16GX2-TZ5RS	€153.95	32 GB \| G.Skill \| F5-7600J3646G16GX2-TZ5RS aantal	€153.95	×
Philips \| 272S1M/00	Philips \| 272S1M/00	€172.95	Philips \| 272S1M/00 aantal	€172.95	×
16 GB \| Team Group \| TLZRD416G3600HC18JDC01	16 GB \| Team Group \| TLZRD416G3600HC18JDC01	€30.95	16 GB \| Team Group \| TLZRD416G3600HC18JDC01 aantal	€30.95	×
16 GB \| Corsair \| CMK16GX4M1Z3600C18	16 GB \| Corsair \| CMK16GX4M1Z3600C18	€34.95	16 GB \| Corsair \| CMK16GX4M1Z3600C18 aantal	€34.95	×
16 GB \| Corsair \| CMK16GX4M2Z2666C16	16 GB \| Corsair \| CMK16GX4M2Z2666C16	€71.95	16 GB \| Corsair \| CMK16GX4M2Z2666C16 aantal	€71.95	×
Acer \| UM.QB7EE.G05	Acer \| UM.QB7EE.G05	€155.95	Acer \| UM.QB7EE.G05 aantal	€155.95	×
AOC \| 25G42E	AOC \| 25G42E	€110.95	AOC \| 25G42E aantal	€110.95	×
16 GB \| Corsair \| CMK16GX4M2D3000C16	16 GB \| Corsair \| CMK16GX4M2D3000C16	€71.95	16 GB \| Corsair \| CMK16GX4M2D3000C16 aantal	€71.95	×
Waardebon:

Totalen winkelwagen

Subtotaal €15,695.35

Verzending

Subtotaal	€15,695.35
Verzending	PostNL: €6.95 Afhalen in Borne De verzendopties worden bij het afrekenen geüpdatet.
Totaal	€15,702.30 (inclusief €2,725.20 BTW)

PostNL: €6.95
Afhalen in Borne

De verzendopties worden bij het afrekenen geüpdatet.

Totaal €15,702.30 (inclusief €2,725.20 BTW)

Update winkelwagen Doorgaan naar afrekenen

Product	Productnaam	Prijs	Aantal	Subtotal	Artikel verwijderen
Philips \| 27E1N1300A/00	Philips \| 27E1N1300A/00	€185.95	Philips \| 27E1N1300A/00 aantal	€371.90	×
32 GB \| Corsair \| CMK32GX5M2B6800C40	32 GB \| Corsair \| CMK32GX5M2B6800C40	€129.95	32 GB \| Corsair \| CMK32GX5M2B6800C40 aantal	€779.70	×
Iiyama \| XCB3494WQSN-B5	Iiyama \| XCB3494WQSN-B5	€369.95	Iiyama \| XCB3494WQSN-B5 aantal	€1,109.85	×
32 GB \| Corsair \| CMH32GX5M2B6400Z32	32 GB \| Corsair \| CMH32GX5M2B6400Z32	€146.95	32 GB \| Corsair \| CMH32GX5M2B6400Z32 aantal	€146.95	×
16 GB \| Corsair \| CMK16GX4M2D3600C18	16 GB \| Corsair \| CMK16GX4M2D3600C18	€38.95	16 GB \| Corsair \| CMK16GX4M2D3600C18 aantal	€38.95	×
Iiyama \| XU2493HS-B6	Iiyama \| XU2493HS-B6	€110.95	Iiyama \| XU2493HS-B6 aantal	€221.90	×
48 GB \| G.Skill \| F5-6400J3239F24GX2-RS5K	48 GB \| G.Skill \| F5-6400J3239F24GX2-RS5K	€181.95	48 GB \| G.Skill \| F5-6400J3239F24GX2-RS5K aantal	€1,637.55	×
Iiyama \| GCB3481WQSU-B1	Iiyama \| GCB3481WQSU-B1	€355.95	Iiyama \| GCB3481WQSU-B1 aantal	€355.95	×
Samsung \| LS32DM700UUXEN	Samsung \| LS32DM700UUXEN	€269.95	Samsung \| LS32DM700UUXEN aantal	€269.95	×
AOC \| Q27U3CV	AOC \| Q27U3CV	€362.95	AOC \| Q27U3CV aantal	€725.90	×
16 GB \| Corsair \| CMG16GX4M1D3600C18	16 GB \| Corsair \| CMG16GX4M1D3600C18	€39.95	16 GB \| Corsair \| CMG16GX4M1D3600C18 aantal	€39.95	×
Iiyama \| XUB3493WQSU-B5	Iiyama \| XUB3493WQSU-B5	€349.95	Iiyama \| XUB3493WQSU-B5 aantal	€699.90	×
Samsung \| LS43DM702UUXEN	Samsung \| LS43DM702UUXEN	€477.95	Samsung \| LS43DM702UUXEN aantal	€955.90	×
32 GB \| G.Skill \| F5-7800J3646H16GX2-TZ5RK	32 GB \| G.Skill \| F5-7800J3646H16GX2-TZ5RK	€144.95	32 GB \| G.Skill \| F5-7800J3646H16GX2-TZ5RK aantal	€144.95	×
Iiyama \| XU2491H-B1	Iiyama \| XU2491H-B1	€98.95	Iiyama \| XU2491H-B1 aantal	€98.95	×
Samsung \| LS25BG400EUXEN	Samsung \| LS25BG400EUXEN	€199.95	Samsung \| LS25BG400EUXEN aantal	€199.95	×
LG \| 27BQ65UB-B.AEU	LG \| 27BQ65UB-B.AEU	€395.95	LG \| 27BQ65UB-B.AEU aantal	€2,375.70	×
Samsung \| LS32DM700UUXEN	Samsung \| LS32DM700UUXEN	€260.95	Samsung \| LS32DM700UUXEN aantal	€260.95	×
16 GB \| Team Group \| TF3D416G3600HC18JDC01	16 GB \| Team Group \| TF3D416G3600HC18JDC01	€50.95	16 GB \| Team Group \| TF3D416G3600HC18JDC01 aantal	€50.95	×
8 GB \| Corsair \| CMSX8GX4M2A2400C16	8 GB \| Corsair \| CMSX8GX4M2A2400C16	€28.95	8 GB \| Corsair \| CMSX8GX4M2A2400C16 aantal	€28.95	×
Iiyama \| TF2438MSC-B1	Iiyama \| TF2438MSC-B1	€506.95	Iiyama \| TF2438MSC-B1 aantal	€506.95	×
32 GB \| Corsair \| CMH32GX5M2X7000C34	32 GB \| Corsair \| CMH32GX5M2X7000C34	€162.95	32 GB \| Corsair \| CMH32GX5M2X7000C34 aantal	€162.95	×
16 GB \| Corsair \| CMK16GX4M2Z3600C18	16 GB \| Corsair \| CMK16GX4M2Z3600C18	€48.95	16 GB \| Corsair \| CMK16GX4M2Z3600C18 aantal	€48.95	×
32 GB \| G.Skill \| F4-3200C16D-32GIS	32 GB \| G.Skill \| F4-3200C16D-32GIS	€73.95	32 GB \| G.Skill \| F4-3200C16D-32GIS aantal	€73.95	×
AOC \| Q27U3CV	AOC \| Q27U3CV	€345.95	AOC \| Q27U3CV aantal	€691.90	×
Philips \| 27E1N1800A/00	Philips \| 27E1N1800A/00	€226.95	Philips \| 27E1N1800A/00 aantal	€453.90	×
Acer \| UM.QB7EE.G06	Acer \| UM.QB7EE.G06	€117.95	Acer \| UM.QB7EE.G06 aantal	€353.85	×
Acer \| UM.HX3EE.319	Acer \| UM.HX3EE.319	€434.95	Acer \| UM.HX3EE.319 aantal	€869.90	×
LC-Power \| LC-M39-QHD-165-C	LC-Power \| LC-M39-QHD-165-C	€428.95	LC-Power \| LC-M39-QHD-165-C aantal	€428.95	×
32 GB \| G.Skill \| F5-6800J3445G16GX2-TZ5RS	32 GB \| G.Skill \| F5-6800J3445G16GX2-TZ5RS	€144.95	32 GB \| G.Skill \| F5-6800J3445G16GX2-TZ5RS aantal	€144.95	×
Iiyama \| GCB3481WQSU-B1	Iiyama \| GCB3481WQSU-B1	€386.95	Iiyama \| GCB3481WQSU-B1 aantal	€386.95	×
8 GB \| Corsair \| CMSX8GX4M1A2666C18	8 GB \| Corsair \| CMSX8GX4M1A2666C18	€21.95	8 GB \| Corsair \| CMSX8GX4M1A2666C18 aantal	€21.95	×
Kingston \| KF436C18BB/16	Kingston \| KF436C18BB/16	€42.95	Kingston \| KF436C18BB/16 aantal	€42.95	×
16 GB \| G.Skill \| F4-3200C16D-16GVKB	16 GB \| G.Skill \| F4-3200C16D-16GVKB	€43.95	16 GB \| G.Skill \| F4-3200C16D-16GVKB aantal	€43.95	×
Acer \| UM.QB7EE.G05	Acer \| UM.QB7EE.G05	€144.95	Acer \| UM.QB7EE.G05 aantal	€144.95	×
32 GB \| G.Skill \| F5-7600J3646G16GX2-TZ5RS	32 GB \| G.Skill \| F5-7600J3646G16GX2-TZ5RS	€153.95	32 GB \| G.Skill \| F5-7600J3646G16GX2-TZ5RS aantal	€153.95	×
Philips \| 272S1M/00	Philips \| 272S1M/00	€172.95	Philips \| 272S1M/00 aantal	€172.95	×
16 GB \| Team Group \| TLZRD416G3600HC18JDC01	16 GB \| Team Group \| TLZRD416G3600HC18JDC01	€30.95	16 GB \| Team Group \| TLZRD416G3600HC18JDC01 aantal	€30.95	×
16 GB \| Corsair \| CMK16GX4M1Z3600C18	16 GB \| Corsair \| CMK16GX4M1Z3600C18	€34.95	16 GB \| Corsair \| CMK16GX4M1Z3600C18 aantal	€34.95	×
16 GB \| Corsair \| CMK16GX4M2Z2666C16	16 GB \| Corsair \| CMK16GX4M2Z2666C16	€71.95	16 GB \| Corsair \| CMK16GX4M2Z2666C16 aantal	€71.95	×
Acer \| UM.QB7EE.G05	Acer \| UM.QB7EE.G05	€155.95	Acer \| UM.QB7EE.G05 aantal	€155.95	×
AOC \| 25G42E	AOC \| 25G42E	€110.95	AOC \| 25G42E aantal	€110.95	×
16 GB \| Corsair \| CMK16GX4M2D3000C16	16 GB \| Corsair \| CMK16GX4M2D3000C16	€71.95	16 GB \| Corsair \| CMK16GX4M2D3000C16 aantal	€71.95	×
Waardebon:

Totalen winkelwagen

Subtotaal €15,695.35

Verzending

Subtotaal	€15,695.35
Verzending	PostNL: €6.95 Afhalen in Borne De verzendopties worden bij het afrekenen geüpdatet.
Totaal	€15,702.30 (inclusief €2,725.20 BTW)

PostNL: €6.95
Afhalen in Borne

De verzendopties worden bij het afrekenen geüpdatet.

Totaal €15,702.30 (inclusief €2,725.20 BTW)

Update winkelwagen Doorgaan naar afrekenen

Product	Prijs	Aantal	Artikel verwijderen
Philips \| 27E1N1300A/00	€185.95	Philips \| 27E1N1300A/00 aantal	×
32 GB \| Corsair \| CMK32GX5M2B6800C40	€129.95	32 GB \| Corsair \| CMK32GX5M2B6800C40 aantal	×
Iiyama \| XCB3494WQSN-B5	€369.95	Iiyama \| XCB3494WQSN-B5 aantal	×
32 GB \| Corsair \| CMH32GX5M2B6400Z32	€146.95	32 GB \| Corsair \| CMH32GX5M2B6400Z32 aantal	×
16 GB \| Corsair \| CMK16GX4M2D3600C18	€38.95	16 GB \| Corsair \| CMK16GX4M2D3600C18 aantal	×
Iiyama \| XU2493HS-B6	€110.95	Iiyama \| XU2493HS-B6 aantal	×
48 GB \| G.Skill \| F5-6400J3239F24GX2-RS5K	€181.95	48 GB \| G.Skill \| F5-6400J3239F24GX2-RS5K aantal	×
Iiyama \| GCB3481WQSU-B1	€355.95	Iiyama \| GCB3481WQSU-B1 aantal	×
Samsung \| LS32DM700UUXEN	€269.95	Samsung \| LS32DM700UUXEN aantal	×
AOC \| Q27U3CV	€362.95	AOC \| Q27U3CV aantal	×
16 GB \| Corsair \| CMG16GX4M1D3600C18	€39.95	16 GB \| Corsair \| CMG16GX4M1D3600C18 aantal	×
Iiyama \| XUB3493WQSU-B5	€349.95	Iiyama \| XUB3493WQSU-B5 aantal	×
Samsung \| LS43DM702UUXEN	€477.95	Samsung \| LS43DM702UUXEN aantal	×
32 GB \| G.Skill \| F5-7800J3646H16GX2-TZ5RK	€144.95	32 GB \| G.Skill \| F5-7800J3646H16GX2-TZ5RK aantal	×
Iiyama \| XU2491H-B1	€98.95	Iiyama \| XU2491H-B1 aantal	×
Samsung \| LS25BG400EUXEN	€199.95	Samsung \| LS25BG400EUXEN aantal	×
LG \| 27BQ65UB-B.AEU	€395.95	LG \| 27BQ65UB-B.AEU aantal	×
Samsung \| LS32DM700UUXEN	€260.95	Samsung \| LS32DM700UUXEN aantal	×
16 GB \| Team Group \| TF3D416G3600HC18JDC01	€50.95	16 GB \| Team Group \| TF3D416G3600HC18JDC01 aantal	×
8 GB \| Corsair \| CMSX8GX4M2A2400C16	€28.95	8 GB \| Corsair \| CMSX8GX4M2A2400C16 aantal	×
Iiyama \| TF2438MSC-B1	€506.95	Iiyama \| TF2438MSC-B1 aantal	×
32 GB \| Corsair \| CMH32GX5M2X7000C34	€162.95	32 GB \| Corsair \| CMH32GX5M2X7000C34 aantal	×
16 GB \| Corsair \| CMK16GX4M2Z3600C18	€48.95	16 GB \| Corsair \| CMK16GX4M2Z3600C18 aantal	×
32 GB \| G.Skill \| F4-3200C16D-32GIS	€73.95	32 GB \| G.Skill \| F4-3200C16D-32GIS aantal	×
AOC \| Q27U3CV	€345.95	AOC \| Q27U3CV aantal	×
Philips \| 27E1N1800A/00	€226.95	Philips \| 27E1N1800A/00 aantal	×
Acer \| UM.QB7EE.G06	€117.95	Acer \| UM.QB7EE.G06 aantal	×
Acer \| UM.HX3EE.319	€434.95	Acer \| UM.HX3EE.319 aantal	×
LC-Power \| LC-M39-QHD-165-C	€428.95	LC-Power \| LC-M39-QHD-165-C aantal	×
32 GB \| G.Skill \| F5-6800J3445G16GX2-TZ5RS	€144.95	32 GB \| G.Skill \| F5-6800J3445G16GX2-TZ5RS aantal	×
Iiyama \| GCB3481WQSU-B1	€386.95	Iiyama \| GCB3481WQSU-B1 aantal	×
8 GB \| Corsair \| CMSX8GX4M1A2666C18	€21.95	8 GB \| Corsair \| CMSX8GX4M1A2666C18 aantal	×
Kingston \| KF436C18BB/16	€42.95	Kingston \| KF436C18BB/16 aantal	×
16 GB \| G.Skill \| F4-3200C16D-16GVKB	€43.95	16 GB \| G.Skill \| F4-3200C16D-16GVKB aantal	×
Acer \| UM.QB7EE.G05	€144.95	Acer \| UM.QB7EE.G05 aantal	×
32 GB \| G.Skill \| F5-7600J3646G16GX2-TZ5RS	€153.95	32 GB \| G.Skill \| F5-7600J3646G16GX2-TZ5RS aantal	×
Philips \| 272S1M/00	€172.95	Philips \| 272S1M/00 aantal	×
16 GB \| Team Group \| TLZRD416G3600HC18JDC01	€30.95	16 GB \| Team Group \| TLZRD416G3600HC18JDC01 aantal	×
16 GB \| Corsair \| CMK16GX4M1Z3600C18	€34.95	16 GB \| Corsair \| CMK16GX4M1Z3600C18 aantal	×
16 GB \| Corsair \| CMK16GX4M2Z2666C16	€71.95	16 GB \| Corsair \| CMK16GX4M2Z2666C16 aantal	×
Acer \| UM.QB7EE.G05	€155.95	Acer \| UM.QB7EE.G05 aantal	×
AOC \| 25G42E	€110.95	AOC \| 25G42E aantal	×
16 GB \| Corsair \| CMK16GX4M2D3000C16	€71.95	16 GB \| Corsair \| CMK16GX4M2D3000C16 aantal	×
Waardebon:

Totalen winkelwagen

Subtotaal €15,695.35

Verzending

Subtotaal	€15,695.35
Verzending	PostNL: €6.95 Afhalen in Borne De verzendopties worden bij het afrekenen geüpdatet.
Totaal	€15,702.30 (inclusief €2,725.20 BTW)

PostNL: €6.95
Afhalen in Borne

De verzendopties worden bij het afrekenen geüpdatet.

Totaal €15,702.30 (inclusief €2,725.20 BTW)

Update winkelwagen Doorgaan naar afrekenen